Wireless charging method and apparatus thereof

ABSTRACT

An electronic device is provided. The electronic device includes a housing, a wireless charging coil disposed inside the housing, a fan disposed inside the housing and in proximity to the coil, a temperature sensor disposed inside the housing and in proximity to the coil, a wireless charging circuit having the coil and configured to transmit power wirelessly to an external device via the coil, and a control circuit electrically connected to the fan, the temperature sensor, and the wireless charging circuit. The control circuit may be configured to receive a signal from the external device, receive data related to a temperature of the coil from the temperature sensor, and control the fan at least partially on the basis of at least one of the signal and the data.

CROSS-REFERENCE TO RELATED APPLICATION(S)

This application claims the benefit under 35 U.S.C. §119(a) of a Koreanpatent application filed on Aug. 13, 2015 in the Korean IntellectualProperty Office and assigned Serial number 10-2015-0114964, the entiredisclosure of which is hereby incorporated by reference.

TECHNICAL FIELD

The present disclosure relates to a method and apparatus for wirelesscharging of an electronic device.

BACKGROUND

A wireless charging device (system) can deliver energy wirelessly to aload without a transmission line by converting electric energy toelectromagnetic waves.

A magnetic induction scheme as one of wireless charging schemes uses amagnetic field induced from a coil to deliver power, and can provideenergy to a load in such a manner that induction current is allowed toflow in a reception coil by using a magnetic field generated fromcurrent that flows in a transmission coil. A standard of the magneticinduction scheme includes wireless power consortium (WPC), power mattersalliance (PMA), or the like. A power transmission frequency may use110-205 kHz in case of the WPC, and may use 227-357 kHz and 118-153 kHzin case of the PMA.

Charging power of the wireless charging system is variable depending ona load condition and charging current which are set in the system,whereas charging voltage can be used statically. With the quick chargingand high-power wireless charging in the wireless charging system, heatgeneration is increased, which may cause a usage restriction.

The above information is presented as background information only toassist with an understanding of the present disclosure. No determinationhas been made, and no assertion is made, as to whether any of the abovemight be applicable as prior art with regard to the present disclosure.

SUMMARY

Aspects of the present disclosure are to address at least theabove-mentioned problems and/or disadvantages and to provide at leastthe advantages described below. Accordingly, an aspect of the presentdisclosure is to provide a wireless charging method and apparatuscapable of decreasing heat generation when high-power and quick wirelesscharging is performed.

Another aspect of the present disclosure is to provide a wirelesscharging method and apparatus capable of effectively cooling heatgenerated during a charging operation, by using an air circulationgeneration member (e.g., a fan).

Another aspect of the present disclosure is to provide a method andapparatus capable of cooling a heat generator by observing a heatingtemperature in high-power charging and by driving a fan when the heatingtemperature exceeds a threshold.

In accordance with an aspect of the present disclosure, an electronicdevice is provided. The electronic device includes a housing, a wirelesscharging coil disposed inside the housing, a fan disposed inside thehousing and in proximity to the coil, a temperature sensor disposedinside the housing and in proximity to the coil, a wireless chargingcircuit having the coil and configured to transmit power wirelessly toan external device via the coil, and a control circuit electricallyconnected to the fan, the temperature sensor, and the wireless chargingcircuit.

The control circuit may be configured to receive a signal from theexternal device, receive data related to a temperature of the coil fromthe temperature sensor, and control the fan at least partially on thebasis of the signal and/or the data.

In accordance with another aspect of the present disclosure, anelectronic device is provided. The electronic device includes a housing,a wireless charging coil disposed inside the housing, a fan disposedinside the housing and in proximity to the coil, a temperature sensordisposed inside the housing and in proximity to the coil, and a wirelesscharging circuit having the coil and configured to transmit powerwirelessly to an external device via the coil.

The electronic device may perform an operation comprising receiving asignal from the external device, receiving data related to a temperatureof the coil from the temperature sensor, and controlling the fan atleast partially on the basis of the signal and/or the data.

Other aspects, advantages, and salient features of the disclosure willbecome apparent to those skilled in the art from the following detaileddescription, which, taken in conjunction with the annexed drawings,discloses various embodiments of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other aspects, features, and advantages of certainembodiments of the present disclosure will be more apparent from thefollowing description taken in conjunction with the accompanyingdrawings, in which:

FIG. 1 illustrates a general structure of a wireless power transmissionsystem according to an embodiment of the present disclosure;

FIG. 2 illustrates a configuration of an external power source supplydevice according to various embodiments of the present disclosure;

FIG. 3 is a flowchart illustrating a procedure of performing a chargingmode in a power source supply device according to various embodiments ofthe present disclosure;

FIG. 4A is a flowchart illustrating a procedure of performing ahigh-power charging mode in a power source supply device according tovarious embodiments of the present disclosure;

FIG. 4B is a flowchart illustrating a method of controlling driving of afan by an electronic device on the basis of a heating temperatureaccording to various embodiments of the present disclosure;

FIG. 5 is a flowchart illustrating an operation of ending a high-powercharging mode in a power source supply device according to variousembodiments of the present disclosure;

FIG. 6 is a flowchart illustrating an operation when full charging isachieved in an electronic device according to various embodiments of thepresent disclosure;

FIG. 7 is an exploded perspective view illustrating a structure of awireless charging device according to various embodiments of the presentdisclosure;

FIG. 8 is an assembled perspective view illustrating an outer appearanceof a wireless charging device according to various embodiments of thepresent disclosure;

FIG. 9 is a cross-sectional view briefly illustrating a structure of awireless charging device according to various embodiments of the presentdisclosure;

FIG. 10 is a cross-sectional view illustrating a structure of a wirelesscharging device according to various embodiments of the presentdisclosure;

FIG. 11 is a cross-sectional view illustrating a state where a coil ismounted according to various embodiments of the present disclosure;

FIG. 12 is a plan view illustrating an outer appearance of a wirelesscharging device according to various embodiments of the presentdisclosure;

FIG. 13A is one later view illustrating an outer appearance of awireless charging device according to various embodiments of the presentdisclosure;

FIG. 13B is another later view illustrating an outer appearance of awireless charging device according to various embodiments of the presentdisclosure;

FIG. 14 is a cross-sectional view illustrating one portion of an innerstructure of a wireless charging device according to various embodimentsof the present disclosure;

FIG. 15 is a cross-sectional view illustrating an internal structure ofa wireless charging device according to various embodiments of thepresent disclosure;

FIG. 16 is a cross-sectional view briefly illustrating a structure of awireless charging device according to various embodiments of the presentdisclosure;

FIG. 17 illustrates an example of a state in which a wireless chargingdevice is mounted on furniture according to various embodiments of thepresent disclosure;

FIG. 18 illustrates an electronic device in a network environmentaccording to various embodiments of the present disclosure;

FIG. 19 is a block diagram of an electronic device according to variousembodiments of the present disclosure; and

FIG. 20 is a block diagram of a program module according to variousembodiments of the present disclosure.

Throughout the drawings, it should be noted that like reference numbersare used to depict the same or similar elements, features, andstructures.

DETAILED DESCRIPTION

The following description with reference to the accompanying drawings isprovided to assist in a comprehensive understanding of variousembodiments of the present disclosure as defined by the claims and theirequivalents. It includes various specific details to assist in thatunderstanding but these are to be regarded as merely exemplary.Accordingly, those of ordinary skill in the art will recognize thatvarious changes and modifications of the various embodiments describedherein can be made without departing from the scope and spirit of thepresent disclosure. In addition, descriptions of well-known functionsand constructions may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are notlimited to the bibliographical meanings, but, are merely used by theinventor to enable a clear and consistent understanding of the presentdisclosure. Accordingly, it should be apparent to those skilled in theart that the following description of various embodiments of the presentdisclosure is provided for illustration purpose only and not for thepurpose of limiting the present disclosure as defined by the appendedclaims and their equivalents.

It is to be understood that the singular forms “a,” “an,” and “the”include plural referents unless the context clearly dictates otherwise.Thus, for example, reference to “a component surface” includes referenceto one or more of such surfaces.

As used in various embodiments of the present disclosure, theexpressions “include”, “may include” and other conjugates refer to theexistence of a corresponding disclosed function, operation, orconstituent element, and do not limit one or more additional functions,operations, or constituent elements. Further, as used in variousembodiments of the present disclosure, the terms “include”, “have”, andtheir conjugates are intended merely to denote a certain feature,numeral, operation, element, component, or a combination thereof, andshould not be construed to initially exclude the existence of or apossibility of addition of one or more other features, numerals,operations, elements, components, or combinations thereof.

In various embodiments of the present disclosure, the expression “or” or“at least one of A or/and B” includes any or all of combinations ofwords listed together. For example, the expression “A or B” or “at leastA or/and B” may include A, may include B, or may include both A and B.

In the present disclosure, expressions including ordinal numbers, suchas “first” and “second,” and the like, may modify various elements.However, such elements are not limited by the above expressions. Forexample, the above expressions do not limit the sequence and/orimportance of the elements. The above expressions are used merely forthe purpose of distinguishing an element from the other elements. Forexample, a first user device and a second user device indicate differentuser devices although both of them are user devices. For example, afirst element may be termed a second element, and likewise a secondelement may also be termed a first element without departing from thescope of various embodiments of the present disclosure.

When an element is referred to as being “coupled” or “connected” to anyother element, it should be understood that not only the element may becoupled or connected directly to the other element, but also a thirdelement may be interposed therebetween. Contrarily, when an element isreferred to as being “directly coupled” or “directly connected” to anyother element, it should be understood that no element is interposedtherebetween.

Furthermore, all terms used herein, including technical and scientificterms, have the same meaning as commonly understood by those of skill inthe art to which the present disclosure pertains. Such terms as thosedefined in a generally used dictionary are to be interpreted to have themeanings equal to the contextual meanings in the relevant field of art,and are not to be interpreted to have ideal or excessively formalmeanings unless clearly defined in various embodiments of the presentdisclosure.

An electronic device according to various embodiments of the presentdisclosure may be a device including a communication function. Forexample, the electronic device may include at least one of a smartphone,a tablet personal computer (PC), a mobile phone, a video phone, anelectronic book (e-book) reader, a desktop PC, a laptop PC, a netbookcomputer, a personal digital assistant (PDA), a portable multimediaplayer (PMP), a Moving Picture Experts Group phase 1 or phase 2 (MPEG-1or MPEG 2) audio layer 3 (MP3) player, a mobile medical appliance, acamera, and a wearable device (e.g. a head-mounted-device (HMD) such aselectronic glasses, electronic clothes, an electronic bracelet, anelectronic necklace, an electronic appcessory, electronic tattoos, or asmartwatch).

According to some embodiments, the electronic device may be a smart homeappliance with a communication function. For example, the smart homeappliance may include at least one of a television (TV), a digitalversatile disc (DVD) player, an audio, a refrigerator, an airconditioner, a vacuum cleaner, an oven, a microwave oven, a washingmachine, an air cleaner, a set-top box, a TV box (e.g., SamsungHomeSync™, Apple TV™, or Google TV™), a game console, an electronicdictionary, an electronic key, a camcorder, and an electronic photoframe.

According to some embodiments, the electronic device may include atleast one of various medical appliances (e.g., magnetic resonanceangiography (MRA), magnetic resonance imaging (MRI), computed tomography(CT), and ultrasonic machines), navigation equipment, a globalpositioning system (GPS) receiver, an event data recorder (EDR), aflight data recorder (FDR), automotive infotainment device, electronicequipment for ships (e.g., ship navigation equipment and a gyrocompass),avionics, security equipment, a vehicle head unit, an industrial or homerobot, an automatic teller machine (ATM) of a banking system, and apoint of sales (POS) of a shop.

According to some embodiments, the electronic device may include atleast one of a part of furniture or a building/structure, an electronicboard, an electronic signature receiving device, a projector, andvarious kinds of measuring instruments (e.g., a water meter, an electricmeter, a gas meter, and a radio wave meter).

The electronic device according to various embodiments of the presentdisclosure may be a combination of one or more of the aforementionedvarious devices. Further, the electronic device according to variousembodiments of the present disclosure may be a flexible device. Further,it will be apparent to those skilled in the art that the electronicdevice according to various embodiments of the present disclosure is notlimited to the aforementioned devices.

In the following description, first voltage may be used as a termincluding basic charging voltage transmitted wirelessly by an electronicdevice to an external device in a basic charging mode. Second voltagemay be used as a term including high-power charging voltage transmittedwirelessly by the electronic device to the external device in ahigh-power charging mode. A first mode may be used as a term includingthe basic charging mode. A second mode may be used as a term includingthe high-power charging mode. An external power source may be used as aterm including a charger (e.g., a travel adapter).

Hereinafter, a configuration of a wireless charging device will bedescribed according to various embodiments with reference to theaccompanying drawings.

FIG. 1 illustrates a general structure of a wireless power transmissionsystem according to an embodiment of the present disclosure.

Referring to FIG. 1, the wireless power transmission system is generallyconstructed of a travel adapter (TA) 100 for supplying a power source byconverting alternating current (AC) power to a direct current (DC) powersource, a wireless charging transmitter (TX) 110 for receiving the DCpower source, converting it to the AC power, and transmitting the powerthrough a transmission coil C1, a wireless charging receiver (RX) 120for receiving the AC power transmitted from the transmission coil C1through a reception coil C2, converting it to DC power, and creating aDC power source having a constant amplitude, and an external device 130for receiving the rectified DC power source from the RX 120. In thewireless power transmission system, the TA 100 and the wireless chargingTX 110 may be electrically connected, and the external device 130 mayinclude the wireless charging RX 120.

FIG. 2 illustrates a configuration of an electronic device according tovarious embodiments of the present disclosure.

Referring to FIG. 2, an electronic device 201 may be a wireless chargingdevice. An external device (or an external electronic device) accordingto various embodiments of the present disclosure may be a device towhich a charging power source is supplied by the electronic device.

The electronic device according to various embodiments of the presentdisclosure may include a wireless charging circuit 200, a controlcircuit 210, a temperature sensor 220, an air circulation generationmember 250, or the like. The wireless charging circuit may include acoil 230, a signal processor 240, and a converter 260. The electronicdevice may be electrically connected to a TA 270. For example, theconverter of the electronic device and the TA 270 may be electricallyconnected.

The electronic device according to the various embodiments of thepresent disclosure may include a housing. In the housing, a coil may bedisposed for wireless charging. A fan may be disposed in proximity tothe coil. A temperature sensor may be disposed in proximity to the coil.

According to the various embodiments of the present disclosure, awireless charging circuit 200 may include a coil, and may transmit apower source wirelessly to an external device via the coil.

According to the various embodiments of the present disclosure, acontrol circuit 210 may be electrically connected to the air circulationgeneration member (e.g., a fan), the temperature sensor, and/or thewireless charging circuit 200. According to the various embodiments ofthe present disclosure, the control circuit 210 may receive a signalfrom the external device, may receive data related to a temperature ofthe coil from the temperature sensor, and may be configured to controlthe air circulation generation member (e.g., the fan) at least partiallyon the basis of the received signal and/or received data.

According to the various embodiments of the present disclosure, thewireless charging circuit 200 may include the signal processor 240, thecoil 230, and/or the converter 260.

According to the various embodiments of the present disclosure, thetemperature detector 220 may include a temperature sensor, and mayrecognize an output of the temperature sensor disposed in proximity to aheating source (e.g., a coil) of the wireless charging circuit.

According to the various embodiments of the present disclosure, the aircirculation generation member 250 may include a fan, and may be disposedin proximity to the heating source of the wireless charging circuit toturn on or turn off the fan.

According to the various embodiments of the present disclosure, at leasta part of the wireless charging circuit 200, control circuit 210, thetemperature sensor 220, and air circulation generation member 250 may beincluded in a printed board assembly (PBA).

According to the various embodiments of the present disclosure, thecontrol circuit 210 may be configured to control charging, heatingcontrol, and a communication operation with respect to an externaldevice. According to an embodiment, the control circuit 210 may beconfigured to control a supply (or output) power source on the basis ofa signal processed in the signal processor 240. According to anembodiment, the control circuit 210 may be configured to receive datarelated to the temperature of the coil from the temperature sensor 220and to control the air circulation generation member 250 at leastpartially on the basis of the received data.

According to the various embodiments, the coil may transmit a signalrelated to a charging power source or wireless charging to an externalelectronic device. For another example, the coil may receive a signaltransmitted from the external electronic device. According to anembodiment, the coil 230 of the wireless charging circuit 200 maytransmit a converted AC power source to the external device.

According to the various embodiments, the temperature sensor 220 mayperform an operation for sensing an internal and/or externaltemperature. For example, the temperature sensor 220 may sense datarelated to the temperature of the coil. For another example, thetemperature sensor 220 may include one or more temperature sensors(e.g., a thermistor). For another example, the temperature sensor 220may be located in proximity to a primary heating source of the wirelesscharging circuit 200. For example, a part of the temperature sensorconstituting the temperature sensor 220 may be located in an upperportion of a shield member of the coil 230 and/or in the PBA. Foranother example, temperature sensors of the temperature sensor 220 maysense heat generated when power is transmitted from the coil 230.

According to the various embodiments, the air circulation generationmember 250 may turn on or turn off a fan under the control of thecontrol circuit 210. The temperature sensor 220 may sense an internal orexternal temperature of the wireless charging circuit 200.

According to the various embodiments, the signal processor 240 may sensedata transmitted from the external electronic device via the coil 230 ofthe wireless charging circuit 200, and may transmit an operation and/orstate information of the electronic device via the coil 230.

According to the various embodiments, the TA 270 may be electricallyconnected to the electronic device, and may generate at least one powersource for wireless power transmission. In the various embodiments ofthe present disclosure, the TA 270 may generate a power source for basiccharging and a power source for high-power charging. For anotherexample, the TA 270 may be directly connected to an in-door AC powersource, and may include an AC/DC converter to convert the AC powersource to a DC power source for charging.

According to the various embodiments, the converter 260 may convert theDC power source of the TA 270 to an AC power source for charging throughswitching control.

According to the various embodiments, the control circuit 210 mayperform a charging mode and a heating control operation. For example,the control circuit 210 may perform the charging mode upon sensing anapproach of the external device via the temperature sensor 220, the coil230, and the signal processor 240. For another example, the controlcircuit 210 may perform switching control on the converter 260 in thecharging mode to convert the DC power source of the TA 270 to the ACpower source for charging. For another example, the control circuit 210may receive a charging complete signal transmitted from the externaldevice via the coil 230 and the signal processor 240. For anotherexample, upon receiving a charging complete signal of a battery from theexternal device in the charging mode or upon receiving a signal forinforming that charging is performed with constant voltage during aspecific time, the control circuit 210 may determine that it is afull-charging state and thus may end the charging mode. For anotherexample, the control circuit 210 may turn the fan off when the chargingmode ends.

In the various embodiments of the present disclosure, the controlcircuit 210 may perform a basic charging mode and/or a high-powercharging mode. For example, the control circuit 210 may sense a type ofthe external device via the signal processor 240, and may providecontrol to determine a charging mode on the basis thereof and to performthe determined charging mode. For example, if the external device is ahigh-power charging enabled device, the control circuit 210 may performa control and/or communication operation so that a high-power chargingpower source is generated if a high-power output is supported, bycontrolling the TA 270 and/or the converter 260. The converter 260 mayconvert a high-power DC charging power source generated in the TA 270into an AC charging power source and may supply it to the coil 230. Inan embodiment, the high-power charging mode may be a quick charging modein which charging is performed with high voltage, and the basic chargingmode may be a normal charging mode in which charging is performed withnormal voltage.

According to the various embodiments, the control circuit 210 mayreceive information related to the temperature of the coil 230 via thetemperature sensor 220, and may control an operation of the aircirculation generation member 250 (e.g., the fan) on the basis of atleast a part of the information related to the received temperature. Forexample, the air circulation generation member may be turned on orturned off. For another example, the control circuit 210 may performcomparative analysis with a set threshold on the basis of at least apart of the received temperature-related information, may turn on theair circulation generation member 250 if it is higher than the thresholdon the basis of the analysis result, and may turn off the aircirculation generation member 250 if it is lower than the threshold.According to the various embodiments, the threshold may be set to anupper threshold and/or a lower threshold, and the upper threshold may bea temperature value greater than the lower threshold.

According to the various embodiments of the present disclosure, thewireless charging circuit 200 may operate in a first mode (e.g., a basiccharging mode) in which the power is transmitted with a first powersource or a second mode (e.g., a high-power charging mode) in which thepower is transmitted with a second power source which is higher than thefirst power source.

According to the various embodiments of the present disclosure, thecontrol circuit 210 may be configured to select the first mode or thesecond mode at least partially on the basis of a signal received fromthe external device and/or data related to the temperature of the coiland received from the temperature sensor.

According to the various embodiments of the present disclosure, thecontrol circuit 210 may further include a circuit for interfacing withan external power source, and may be configured to receive power of adifferent level from the external power source via the interfacingcircuit on the basis of selection of the first mode or the second mode.

According to the various embodiments, the control circuit 210 may beconfigured to receive a signal from the external device via the wirelesscharging circuit, and the signal may include an indication forrequesting for control of the fan or an indication regarding a level ofpower transmitted wirelessly to the external device.

According to the various embodiments, when the external device is inproximity to the electronic device (or the electronic device is inproximity to the external device), the control circuit 210 may perform acharging operation by controlling the wireless charging circuit 200. Forexample, if the external device is in proximity to the electronicdevice, the control circuit 210 may sense an approach of the externaldevice via the coil 230 and the signal processor 240. For example, thecontrol circuit 210 may control to perform a basic charging modeoperation upon sensing the approach of the external device.

For another example, the control circuit 210 may analyze a device typeof the external device via the signal processor 240. For example, theexternal device may be a device supporting quick charging or a devicesupporting only the basic charging mode. According to another example,if the external device is a device capable of supporting quick charging(e.g., an adaptive fast charging (AFC) device), the control circuit 210may generate a high-power charging power source by controlling the TA270 and/or the converter 260. For example, the basic charging powersource may be 5 A/1 A, and the high-power charging power source may be9V/1.67 A.

According to the various embodiments, the TA 270 may generate a DC powersource and may supply it to the converter 260. According to the variousembodiments, the TA 270 may be electrically connected to the electronicdevice, and may be connected, for example, through a connector (notshown) from outside the electronic device. In the charging mode, thecontrol circuit 210 may perform switching control on the converter 260to convert the DC power source of the TA 270 to an AC power source forcharging.

According to the various embodiments, in the basic charging mode, the TA270 may regulate a to-be-supplied power source by fixing voltage to theDC power source for basic charging and by varying current irrespectiveof the high-power charging mode. For another example, in the high-powercharging mode, the TA 270 may regulate the to-be-supplied power sourceby fixing voltage to be higher than the reference voltage and by varyingcurrent. For example, a power source may be regulated in each mode sothat the to-be-supplied power source can vary depending on a positionbetween the external device and the electronic device, a batterycharging level, a state of the external device, or the like.

According to the various embodiments, the control circuit 210 maycontrol the TA 270 or may generate a DC power source for high-powercharging or basic charging via a proper communication interface, and mayperform switching control on the converter 260 to convert the DC powersource for charging and generated in the TA 270 to an AC power source.For another example, the control circuit 210 may receive informationrelated to a charging state of the external device via the signalprocessor 240, and may regulate current strength of a charging powersource by analyzing the state information of the external device on thebasis of the received information. For example, the control circuit 210may decrease a to-be-supplied charging power source by increasing aswitching control signal (or a switching frequency) according to thecharging condition, or may increase the to-be-supplied charging powersource by decreasing the switching control signal.

According to the various embodiments, the AC power source for chargingand converted in the converter 260 may be transmitted wirelessly to theexternal device which is in proximity (or contact) via the coil 230 ofthe wireless charging circuit 200. For example, the external device maycharge a battery by using a charging power source received wirelessly.

According to the various embodiments, the external device may charge thebattery by using a charging power source transmitted from the electronicdevice. For example, the charging may operate with a high-power chargingor basic charging power source. According to the various embodiments, ifcharging of the battery is close to full charging in the high-powercharging operation, the external device may stop the high-power chargingmode and may transmit a signal for changing to the basic charging modeto a power source supply device. For another example, the power sourcesupply device may receive a signal for changing to the reference modevia the coil 230 of the wireless charging circuit 200, and the signalprocessor 240 may convert the signal into data and transmit it to thecontrol circuit 210. For example, upon receiving a signal including atleast a part of information related to the stopping of the high-powercharging mode via the signal processor 240, the control circuit 210 mayconvert a high-power charging power source to a basic charging powersource by controlling the TA 270 and/or the converter 260.

According to the various embodiments, upon completion of the charging,the electronic device may receive a signal including at least a part ofinformation related to the end of the charging from the external device.According to an embodiment, the coil 230 of the wireless chargingcircuit 200 may receive information including at least a part of theinformation related to the end of the charging from the external device,and the received at least the part of information may be a signal forrequesting to end the charging.

According to the various embodiments, the signal processor 240 maytransmit at least a part of a signal at least partially related to thereceived signal to the control circuit 210.

According to the various embodiments, if the control circuit 210receives the signal including at least the part of the informationrelated to the end of charging from the signal processor 240, thecharging operation may end by controlling the TA 270 and the converter260.

According to the various embodiments, a charging power sourcetransmitted from the electronic device may be expressed by a product ofcharging voltage and charging current. For example, the electronicdevice may use fixed voltage in each charging mode as charging voltage(e.g., charging voltage which is set in the high-power charging mode orthe basic charging mode), and may variously control charging currentaccording to a load condition and a charging state of each chargingmode. According to the various embodiments, a heat generator of theelectronic device may be a PBA and/or a coil or the like.

According to the various embodiments of the present disclosure, theelectronic device may have a fan disposed in proximity to the heatgenerator (e.g., the coil) or between the heat generators (e.g., betweenthe coil and the PBA). For another example, a temperature sensor (e.g.,a thermistor) may be attached in proximity to the heat generator. Foranother example, if a heating temperature sensed in the charging modewhile monitoring an output of the temperature sensor exceeds a set upperthreshold, heat generation may be decreased by turning on the fan. Foranother example, if the heating temperature sensed in the charging modeis lower than a set lower threshold, the power source supply device mayturn off the fan.

According to the various embodiments, the electronic device may controlthe driving of the fan on the basis of a type of the charging mode.

According to the various embodiments, if the external device is ahigh-power charging enabled device, the electronic device may controlthe TA 270 and/or the converter 260 to generate a charging power sourcefor high-power charging and transmit it wirelessly to the externaldevice.

According to the various embodiments, an operation in which theelectronic device controls heat generation in the high-power chargingmode is described. For example, upon changing from the basic chargingmode to the high-power charging mode, the control circuit 210 may turnon the air circulation generation member 250 (e.g., the fan). Foranother example, if the heating temperature exceeds the set upperthreshold in a state where the high-power charging mode is performed,the control circuit 210 may turn on the air circulation generationmember 250. For another example, during the high-power charging mode isperformed, a signal including at least a part of information related toa request for stopping the high-power charging may be received from theexternal device. For example, the coil 230 and/or signal processor 240of the wireless charging circuit 200 may receive the signal including atleast the part of information related to the request for stoppingcharging and transmitted from the external device, and may deliver thesignal to the control circuit 210. For example, upon receiving thesignal including at least the part of information related to the requestfor stopping charging, the control circuit 210 may control the TA 270and/or the converter 260 to convert to the basic charging mode, and maycontrol the air circulation generation member 250 to turn off the fan ofthe air circulation generation member 250. For another example, uponreceiving the signal including at the least the part of informationrelated to the request for stopping high-power charging from theexternal device, the control circuit 210 may control the TA 270 and/orthe converter 260 to convert to the basic charging mode. For anotherexample, the control circuit 210 may analyze a heating temperature ofthe heat generator (e.g., the coil 230). According to an embodiment, thecontrol circuit 210 keeps a state in which the fan of the aircirculation generation member 250 is turned on until the heatingtemperature sensed by the temperature sensor 220 depending on ananalysis result of the heating temperature reaches the lower threshold,and may turn off the fan of the air circulation generation member 250 ata time when the heating temperature is lower than the lower threshold.

According to the various embodiments, the electronic device may performan operation of controlling heat generation in the basic charging mode.For example, if the heating temperature sensed for the coil 230 via thetemperature sensor 220 exceeds the set upper threshold in the basiccharging mode, the control circuit 210 may turn on the air circulationgeneration member 250. For another example, if the heating temperaturesensed for the coil 230 by the temperature sensor 220 is lower than theset lower threshold in the basic charging mode, the control circuit 210may control the air circulation generation member 250 to be turned off.

According to the various embodiments, the basic charging mode may have arelatively lower heating condition than in the high-power charging mode.For another example, during the basic charging mode is performed, thecontrol circuit 210 may turn off the fan of the air circulationgeneration member 250 at a time when the heating temperature sensed forthe coil 230 by the temperature sensor 220 is lower than the lowerthreshold. According to the various embodiments, similarly to thehigh-power charging mode, the electronic device in the basic chargingmode may also turn on or turn off the fan on the basis of a result ofcomparing each of the heating temperature sensed by the temperaturesensor 220 and the upper and/or lower thresholds.

According to the various embodiments, the power source supply device mayperform an operation of controlling heat generation when misalignmentoccurs in the charging mode. For example, if the misalignment occurs,power may be supplied with maximum possible current for more than aspecific time in each charging mode by the coil 230 of the power sourcesupply device.

For example, if the heating temperature sensed for the coil 230 via thetemperature sensor 220 exceeds the set upper threshold in themisalignment state, the control circuit 210 may turn on the aircirculation generation member 250. For another example, if the heatgeneration sensed for the coil 230 by the temperature sensor 220 islower than the set lower threshold in the misalignment state, thecontrol circuit 210 may turn off the air circulation generation member250.

According to the various embodiments, an operation of controlling heatgeneration may be performed when the power source supply device ischanged to a full charging state.

For example, during the charging mode is performed, the external devicemay generate a signal indicating full charging (or a signal forrequesting to end the charging). For example, if a full charging signalis transmitted from the external device, the electronic device mayreceive the full charging signal. The coil 230 and/or signal processor240 of the wireless charging circuit 200 may receive the full chargingsignal transmitted from the external device, and may deliver thereceived full charging signal to the control circuit 210. According tothe various embodiments, upon receiving the signal indicating the fullcharging, the control circuit 210 may control the TA 270 and/or theconverter 260 to end the charging mode, and may turn off the aircirculation generation member 250 (e.g., the fan).

According to the various embodiments, the electronic device may turn offthe air circulation generation member 250 by determining the fullcharging in the following state. For example, the electronic device mayreceive a charging complete signal transmitted from the external devicevia the signal processor 240. The control circuit 210 may immediatelyturn off the fan of the air circulation generation member 250 at a timewhen the charging complete signal is received. Alternatively, afterreceiving the charging complete signal, the control circuit 210 mayanalyze the heating temperature sensed by the temperature sensor 220,and may turn off the fan of the air circulation generation member 250when the heating temperature is lower than the lower threshold. Foranother example, the electronic device may receive a signal regardingthe change of the charging duration to a constant-voltage (CV) durationvia the signal processor 240. For example, the control circuit 210 mayimmediately turn off the fan of the air circulation generation member250 when a charging change signal (i.e., a CV signal) is received.Alternatively, after receiving the charging change signal (i.e., the CVsignal), the control circuit 210 may analyze the heating temperaturesensed by the temperature sensor 220. According to the variousembodiments, the control circuit 210 may turn off the fan of the aircirculation generation member 250 when the heating temperature is lowerthan the lower threshold. For another example, the control circuit 210may use the signal processor 240 to analyze a charging power sourcetransmitted wirelessly from the external device via the coil 230. Thecontrol circuit 210 may determine a full charging state when thecharging power source is decreased for a specific time. If it isdetermined as the full charging state due to the decrease of thecharging power source, the control circuit 210 may control the aircirculation generation member 250 to immediately turn off the fan.Alternatively, the fan may be turned off when the charging power sourceis decreased for the specific time and the heating temperature sensed bythe temperature sensor 220 is lower than the lower threshold.

The electronic device according to the various embodiments may controlthe charging operation as the basic charging mode in the followingstate, if the external device is a device supporting the high-powercharging mode.

The electronic device according to the various embodiments may performthe basic charging mode at a specific time. For example, if it isdetermined that a state where the external device is not used iscontinued for a long period of time, the control circuit 210 may performthe basic charging mode instead of performing the high-power chargingmode. That is, if a time at which the charging mode is performed is aspecific time (for example, a time duration in which a user of theexternal device is sleeping, e.g., 22:00 to 6:00 next day), the controlcircuit 210 may perform the basic charging mode irrespective of a typeof the external device. For another example, if the external devicetransmits a signal including at least a part of information related tostopping of the high-power charging mode, the signal processor 240 maydeliver to the control circuit 210 the signal including at least thepart of information related to the stopping of high-power charging andreceived via the coil 230 of the wireless charging circuit 200.According to the various embodiments, upon receiving the signalincluding at least the part of information related to the request forending high-power charging, the control circuit 210 may control the TA270 and/or the converter 260 to perform the charging operation in thebasic charging mode. For another example, the external device may have afunction capable of selecting the high-power charging mode or the basiccharging mode. If the external device requests for the basic chargingmode, the electronic device may perform the charging operation in thebasic charging mode even in case of the external device capable ofperforming the high-power charging mode. For another example, the powersource supply device may stop the high-power charging mode if a heatingtemperature of the coil 230 is sensed to be higher than or equal to aset temperature (i.e., a high-power charging limit temperature). Forexample, the high-power charging limit temperature may be a temperaturewhich is higher than a temperature of the upper threshold. For example,the temperature of the upper threshold may be set to 39 degrees, and thehigh-power limit temperature may be set to 41 degrees. In this case, ifthe heating temperature of the coil 230 has a value in the range of 39degrees to 41 degrees, the electronic device may perform the high-powercharging mode while turning on the fan. For another example, if theheating temperature of the coil 230 exceeds the high-power charginglimit temperature (e.g., 41 degrees), the power source supply device maycontrol the TA 270 and the converter 260 to change the charging mode(the change from the high-power charging mode to the basic chargingmode), or may stop the charging operation until the heating temperatureis decreased to a set temperature (e.g., an upper threshold temperaturevalue).

According to the various embodiments, the wireless charging circuit 200of the electronic device may include a fan capable of decreasing aninternal heating temperature and/or a temperature sensor capable ofdetecting the heating temperature. According to the various embodiments,the fan may be the air circulation generation member 250, and thetemperature sensor may be the temperature sensor 220. According to thevarious embodiments, the electronic device may keep or change thecharging mode on the basis of at least a part of a device type and/orcharging state of the external device or a charging state of theelectronic device, and may control the fan on the basis of a heatingtemperature increased or decreased during charging. According to thevarious embodiments, an operation of controlling the fan may include anoperation of turning on/off the fan or an operation of controlling arotation speed of the fan. According to the various embodiments, ascenario of driving the fan may be expressed by Table 1 below.

TABLE 1 Classification Fan drive Condition high-power charging on whenstarting the high-power mode charging mode or changing the basiccharging mode to the high-power charging mode, or when the heatingtemperature is equal or higher than a upper threshold value in thehigh-power charging mode. off when the heating temperature is lower thanthreshold value (e.g., the upper threshold value when the fan is in anoff state or a lower threshold value when the fan changes from an onstate to the off state) in the high- power charging mode or whenchanging the high-power charging mode to the basic charging mode (thefan is off immediately or when the heating temperature is lower than thelower threshold value). basic charging mode on when the heatingtemperature is equal or higher than the upper threshold value in thebasic charging mode. off when the heating temperature is lower thanthreshold value in the basic charging mode (the fan is off immediatelyor when the heating temperature is lower than the lower thresholdvalue). mis-align on when the heating temperature is equal or higherthan the upper threshold value in the mis-align state. off when theheating temperature is lower than the lower threshold value in themis-align state. full charging off the fan is off immediately or whenthe heating temperature is lower than the lower threshold value.

FIG. 3 is a flowchart illustrating a procedure of a charging operationof an electronic device according to various embodiments of the presentdisclosure.

Referring to FIG. 3, according to the various embodiments of the presentdisclosure, in operation 311, the electronic device may sense aproximity (or a contact) of an external device.

According to the various embodiments, in operation 312, the electronicdevice may determine whether the external device of which the approachis sensed is a wireless charging enabled device.

If it is determined in operation 312 that the external device is not thewireless charging enabled device, the procedure may end in operation 335according to the various embodiments of the present disclosure.

If it is determined in operation 312 that the external device is thewireless charging enabled device, the electronic device may perform thecharging operation in the basic charging mode in operation 313 accordingto the various embodiments of the present disclosure. For example, inthe basic charging mode, the electronic device may convert a DC powersource for basic charging to an AC power source via the TA 270 byperforming switching control in the converter 260. For another example,the coil 230 of the wireless charging circuit 200 may wirelesslytransmit, to the external device in proximity, the AC power source whichis for basic charging and which is output from the converter 260.

According to the various embodiments of the present disclosure, inoperation 315, the electronic device may perform an operation of sensinga signal transmitted from the external device. For example, the signalmay be received and/or sensed from the external device via the coil 230and/or the signal processor 240 of the electronic device. For anotherexample, the electronic device may sense a signal (data) including atleast a part of information related to charging via the coil 230 and/orthe signal processor 240. According to the various embodiments, therelated information may include information related to a device type ofthe external device, and the information related to the device type mayinclude information indicating whether high-power charging is possible.

According to the various embodiments of the present disclosure, inoperation 317, whether it is a high-power transmission request signalmay be determined. For example, the electronic device may determinewhether it is the high-power transmission request signal on the basis ofat least a part of the signal sensed in operation 315. For anotherexample, the electronic device may analyze the device type of theexternal device on the basis of at least the part of the receivedsignal, and if the external device is the high-power charging enableddevice, may determine this as a high-power charging request.

If it is determined in operation 317 that it is the high-powertransmission request signal, a power source confirmation operation maybe performed in operation 319. For example, the electronic device mayconfirm whether the TA 270 can generate high power. For example, if theexternal device is the high-power charging enabled device, interface(e.g., AFC) communication may be performed with respect to the TA 270 inorder to confirm whether the TA 270 electrically connected to theelectronic device 201 of FIG. 2 can supply high power.

In operation 321, the electronic device may determine whether a powersource (e.g., the TA) supports high-power charging. For example, thedetermination operation may operate on the basis of at least a part ofinformation confirmed in operation 319.

If it is determined in operation 321 that the power source supportshigh-power charging, the electronic device may proceed to the high-powercharging mode in operation 323 according to the various embodiments ofthe present disclosure. For example, in the high-power charging mode,the electronic device may provide control such that the TA 270 cangenerate a DC power source for high-power charging via the controlcircuit and can convert a DC power source to the AC power source via theconverter 260. According to the various embodiments, the AC power sourceconverted by the converter 260 is supplied to the coil 230, and the coil230 may wirelessly transmit the AC power source for high-power chargingto the external device.

According to the various embodiments of the present disclosure, inoperation 324, the electronic device may determine whether a signal isreceived from the external device. For example, the electronic devicemay perform the charging operation in the high-power charging mode, andmay determine whether there is a signal received via the coil 230 and/orthe signal processor 240.

If it is determined in operation 324 that the signal is received, theelectronic device may determine whether a signal related to stopping ofthe high-power charging mode is received in operation 325 according tothe various embodiments of the present disclosure.

If it is determined in operation 325 that it is not the signal relatedto the stopping of the high-power charging mode, the electronic devicemay keep performing the charging operation in the high-power chargingmode in operation 323 according to the various embodiments of thepresent disclosure.

If it is determined in operation 325 that it is the signal related tothe stopping of the high-power charging mode, the electronic device mayproceed to the basic charging mode in operation 333 according to thevarious embodiments of the present disclosure. For example, theelectronic device may perform the charging operation by changing fromthe high-power charging mode to the basic charging mode.

If it is determined in operation 317 that it is not the signal forrequesting for high-power transmission, the electronic device mayproceed to the basic charging mode in operation 333 according to thevarious embodiments of the present disclosure.

If it is determined in operation 321 that the power source does notsupport high-power charging, the electronic device may proceed to thebasic charging mode in operation 333 according to the variousembodiments of the present disclosure.

According to the various embodiments of the present disclosure, if theexternal device is a high-power charging disabled external device or ifthe external device transmits a signal for requesting for the basiccharging mode, the electronic device may proceed to the basic chargingmode in operation 333 according to the various embodiments of thepresent disclosure.

According to the various embodiments of the present disclosure, if theexternal device has requested for high-power charging but the TA 270 isa device which cannot provide a high-power charging power source, theelectronic device may proceed to the basic charging mode according tothe various embodiments of the present disclosure.

According to the various embodiments of the present disclosure, afterproceeding to the basic charging mode, if the charging is complete, thepower source supply device may end the charging operation in operation335.

According to the various embodiments of the present disclosure, in thebasic charging mode, the control circuit 210 may control the TA 270 togenerate a DC power source for basic charging, and may control theconverter 260 to convert the basic charging DC power source to the ACpower source and supply it to the coil 230 of the wireless chargingcircuit 200. The coil 230 may wirelessly transmit the supplied basiccharging AC power source to the external device.

The electronic device according to the various embodiments of thepresent disclosure may receive a signal related to at least a part ofinformation related to charging from the external device during thecharging is performed, and may control a state of wireless powertransmission which is currently performed on the basis of at least apart of the received signal. For example, if the received data isrelated to a signal regarding a decrease in a power amount, theelectronic device may perform transmission by decreasing current to betransmitted wirelessly to the external device. Alternatively, if thereceived signal is a signal related to an increase in the power amount,the electronic device may control to perform transmission by increasingcurrent to be transmitted wirelessly to the external device. For anotherexample, the electronic device may control the TA 270 and/or theconverter 260 to regulate current of a charging power source to betransmitted wirelessly to the external device.

The electronic device according to the various embodiments of thepresent disclosure may sense an internal or external temperature of thewireless charging circuit 200 via the temperature sensor 220 whenperforming a wireless charging control operation. If the sensedtemperature exceeds the upper threshold, the electronic device may drivethe fan via the air circulation generation member 250. In a state ofdriving the fan, the temperature sensor 220 may sense the internal orexternal temperature of the wireless charging circuit 200. If the sensedtemperature is lower than the lower threshold, the electronic device mayturn off the fan of the air circulation generation member 250.

According to the various embodiments of the present disclosure, thecontrol circuit 210 of the electronic device may analyze a chargingpower source transmitted wirelessly to the external device via thesignal processor 240 connected to the coil 230 of the wireless chargingcircuit 200. The electronic device may control the charging power sourcetransmitted wirelessly to the external device according to the analyzedcharging power source. For example, if the wirelessly transmittedcharging power source is decreased for a specific time, the electronicdevice may control the TA 270 and/or the converter 260 to regulatecurrent of the charging power source transmitted wirelessly to theexternal device.

FIG. 4A is a flowchart illustrating a procedure of performing ahigh-power charging mode in a power source supply device according tovarious embodiments of the present disclosure.

Referring to FIG. 4A, according to the various embodiments of thepresent disclosure, in operation 411, an electronic device may performthe high-power charging mode. For example, the TA 270 may generate a DCpower source for high-power charging in the high-power charging mode,and the converter 260 may be switched under the control of the controlcircuit 210 and thus may convert the DC power source for high-powercharging and output from the TA 270 into an AC power source. Accordingto another example, charging current may be regulated by a switchingfrequency of the converter 260. For another example, in the high-powercharging power source, charging voltage may be fixed and chargingcurrent may be variable according to a charging condition.

According to the various embodiments of the present disclosure, inoperation 412, the power source supply device may turn the fan on viathe air circulation generation member 250. For example, if the chargingoperation is performed in the high-power charging mode, the fan may beturned on.

According to the various embodiments, in operation 413, the electronicdevice may perform a wireless charging observation operation. Forexample, the observation operation may be performed on the basis of atleast a part of information acquired via the temperature sensor, coil,or signal processor 240 included in the wireless charging circuit 200.

According to the various embodiments of the present disclosure, inoperation 415, whether the high-power charging mode ends may bedetermined at least partially on the basis of the wireless chargingobservation operation of operation 413.

If it is determined in operation 415 that the high-power charging doesnot end, whether a heating temperature is higher than a threshold may bedetermined in operation 417 according to the various embodiments of thepresent disclosure. For example, the heating temperature may be aheating temperature sensed via the temperature sensor 220 whenperforming the wireless charging observation operation, and an operationof comparing this temperature with a determined threshold may beperformed.

If it is determined in operation 417 that the heating temperatureexceeds a threshold, the electronic device may adjust a speed of drivingthe fan on the basis of at least a part of a signal and/or data inoperation 421 according to the various embodiments of the presentdisclosure. For example, the electronic device may variably control afan rotation speed according to the heating temperature detected for thewireless charging circuit 200 by the temperature sensor 220.

If it is determined in operation 417 that the heating temperature islower than the threshold, the power source supply device may turn thefan off in operation 419 according to the various embodiments of thepresent disclosure. For example, if the heating temperature is lowerthan the threshold, the fan may be turned off.

According to the various embodiments of the present disclosure, thewireless charging observation of operation 413 may be performed for asignal received via the coil 230 of the wireless charging circuit 200and/or a state or the like of a charging power source wirelesslytransmitted from the coil 230 of the wireless charging circuit 200. Forexample, the received data may be a signal transmitted from the externaldevice. For example, the external device may generate a signal forchanging from the high-power charging mode to the basic charging modeaccording to a charging state. For example, the external device may endthe high-power charging mode when charging of a battery reaches a setcharging amount during the high-power charging, and may generate asignal for changing to the basic charging mode. For example, theelectronic device may observe the state of the charging power sourcetransmitted wirelessly to the external device via the coil 230. If thecharging power source transmitted wirelessly via the coil 230 in thehigh-power charging mode is decreased for a specific time, theelectronic device may stop the high-power charging mode.

If it is determined in operation 415 that the high-power charging ends,the power source supply device may turn off the fan of the aircirculation generation member 250 in operation 425 according to thevarious embodiments of the present disclosure.

It may be changed to the basic charging mode in operation 427 accordingto the various embodiments of the present disclosure. For example, itmay be changed to the basic charging mode by controlling the TA 270and/or the converter 260.

In case of operations 425 and 427 according to the various embodimentsof the present disclosure, operation 427 may be first performed andthereafter operation 425 may be performed. For another example,operation 425 may be skipped and the fan driving may be controlled inthe basic charging mode. For example, the electronic device may turn thefan off in case of changing from the high-power charging mode to thebasic charging mode, or may turn the fan off at a time when a heatingtemperature is lower than a lower threshold after transitioning to thebasic charging mode.

According to the various embodiments, the electronic device may have anupper threshold and a lower threshold to have a hysteresischaracteristic (or Schmitt trigger characteristic) when controlling theturn on/turn off of the fan via the air circulation generation member250.

According to the various embodiments, if the fan is turned on, the powersource supply device may frequently perform the operation of turningon/turning off the fan when the heating temperature sensed by thetemperature sensor 220 is within a specific range.

FIG. 4B is a flowchart illustrating a method of controlling driving of afan by an electronic device on the basis of a heating temperatureaccording to various embodiments of the present disclosure.

Referring to FIG. 4B, according to the various embodiments, in operation451, a control circuit of the electronic device may acquire data relatedto a heating temperature sensed for a wireless charging circuit via thetemperature sensor 220.

According to the various embodiments of the present disclosure, inoperation 453, whether the temperature is lower than a threshold 1(e.g., an upper threshold) may be determined. For example, thetemperature may be temperature information acquired in operation 451.

If it is determined in operation 453 that the temperature is not lowerthan the threshold 1, the electronic device may control the driving ofthe fan on the basis of the temperature in operation 455 according tothe various embodiments of the present disclosure. For example, if thetemperature sensed by the temperature sensor 220 exceeds the upperthreshold, the electronic device may turn the fan on via the aircirculation generation member 250. The electronic device according tothe various embodiments may control a fan rotation speed on the basis ofa signal and/or data when driving the fan. For example, if the fan isturned on in a high-power charging mode, the fan rotation speed may beadjusted on the basis of the heating temperature sensed by thetemperature sensor 220. For another example, if the heating temperatureexceeds the upper threshold and thereafter rises to up to a high-powercharging limit temperature, the electronic device may limit high-powercharging and may adjust the fan rotation speed to a maximum speed.

If it is determined in operation 453 that the temperature is lower thanthe threshold 1, whether it is a state where the fan is on may bedetermined in operation 457 according to the various embodiments of thepresent disclosure.

If it is determined in operation 457 that the fan is turned on, theelectronic device may determine whether the temperature is lower than athreshold 2 in operation 459 according to the various embodiments of thepresent disclosure. For example, the temperature may be temperatureinformation acquired in operation 451.

If it is determined in operation 459 that the temperature is lower thanthe threshold 2, the electronic device may turn the fan off via the aircirculation generation member 250 in operation 461 according to thevarious embodiments of the present disclosure.

According to the various embodiments, if the heating temperature sensedfor the control circuit 210 via the temperature sensor 220 is lower thanthe threshold (e.g., the lower threshold) in a state where the fan ison, the electronic device may turn the fan off via the air circulationgeneration member 250. According to the various embodiments, the powersource supply device may keep the state where the fan is on if theheating temperature is lower than the upper threshold but is higher thanthe lower threshold in the state there the fan is turned on.

FIG. 5 is a flowchart illustrating an operation of ending a high-powercharging mode in a power source supply device according to variousembodiments of the present disclosure. The various embodiments of FIG. 5may be an example of the wireless charging observation operation of FIG.4A.

Referring to FIG. 5, according to the various embodiments of the presentdisclosure, in operation 511, the electronic device may confirm timeinformation. For example, the time information may be received from anexternal device, or a charging time may be confirmed on the basis ofinformation acquired from the electronic device.

According to the various embodiments of the present disclosure, inoperation 513, the electronic device may determine a charging mode onthe basis of the confirmed information. For example, the electronicdevice may perform a basic charging mode at a specific time. Forexample, the basic charging mode may be performed irrespective of a typeof the external device at a specific time of performing the chargingmode (e.g., a sleep time of a user, a time period in which the user doesnot use the external device for a specific time, a time which is set bythe user, or the like).

The electronic device according to the various embodiments of thepresent disclosure may perform an operation of determining whether acurrent time is equal to a set time on the basis of at least a part ofthe confirmed information in operation 511. For example, the set timemay be a time which is set to charge the external device in the basiccharging mode. For example, if it is the time which is set for chargingin the basic charging mode, the electronic device may transition to thebasic charging mode. If the high-power charging mode is performed beforethe set time, the electronic device according to the various embodimentsmay control the TA 270 and the TA 270 to stop the high-power chargingmode, and may transition to the basic charging mode.

If the electronic device according to the various embodiments of thepresent disclosure receives a signal related to the stopping of thehigh-power charging mode from the external device, the electronic devicemay stop the performing of the high-power charging mode. For example, ifthe electronic device receives a high-power charging stop request signalfrom the external device in a state of performing the charging operationin the high-power charging mode, the high-power charging mode may bestopped to transition to the basic charging mode. For example, theelectronic device may receive the high-power charging stop requestsignal transmitted from the external device via the coil 230 and thesignal processor 240.

The electronic device according to the various embodiments may determinewhether the heating temperature sensed for the control circuit 210 viathe temperature sensor 220 is greater than or equal to a high-powercharging limit temperature. According to the various embodiments, thehigh-power charging limit temperature may be higher than a temperatureof the upper threshold. For example, if the heating temperature of thewireless charging circuit has a value in the range from the upperthreshold to the high-power charging limit temperature, the electronicdevice may determine a corresponding temperature, may turn the fan onvia the air circulation generation member 250, and may perform thehigh-power charging mode. For example, if the heating temperature of thewireless charging circuit exceeds the high-power charging limittemperature, the electronic device may recognize the high-power charginglimit temperature and may control the TA 270 and the converter 260 tochange the charging mode. For example, the electronic device may changethe charging mode from the high-power charging mode to the basiccharging mode. For example, the electronic device may stop the chargingmode.

According to the various embodiments of the present disclosure, in thebasic charging mode, the electronic device may control the driving ofthe fan by confirming a signal received from the external device and/ordata related to the heating temperature of the wireless charging circuit200 while generating a charging power source as a reference powersource.

In the electronic device according to the various embodiments of thepresent disclosure, if the heating temperature sensed for the wirelesscharging circuit 200 by the temperature sensor 220 exceeds the set upperthreshold in the basic charging mode, the control circuit 210 maycontrol the air circulation generation member 250 to turn on the fan ofthe wireless charging unit. The electronic device according to thevarious embodiments may turn off the fan if the heating temperaturesensed for the wireless charging circuit 200 by the temperature sensor220 is lower than a set lower threshold. The electronic device accordingto the various embodiments may turn off the fan via the air circulationgeneration member 250 if it is a state where the fan is off in the basiccharging mode and if the currently sensed heating temperature is lowerthan the upper threshold. If it is a state where the fan is on in thebasic charging mode, the electronic device according to the variousembodiments may turn off the fan at a time when the heating temperaturesensed for the wireless charging circuit 200 by the temperature sensor220 is lower than the lower threshold.

FIG. 6 is a flowchart illustrating an operation when full charging isachieved in an external device according to various embodiments of thepresent disclosure.

Referring to FIG. 6, according to the various embodiments of the presentdisclosure, in operation 611, an electronic device may confirm a signaltransmitted from the external device For example, when charging iscomplete, the external device may transmit a charging complete signal tothe electronic device.

According to the various embodiments of the present disclosure, inoperation 613, the electronic device may determine whether it is thecharging complete signal.

If it is determined in operation 613 that it is the charging completesignal, the electronic device may perform a full charging processingoperation in operation 615 according to the various embodiments of thepresent disclosure. For example, the electronic device may control theTA 270 and/or the converter 260 to perform the full charging processingoperation.

According to the various embodiments of the present disclosure, inoperation 617, the electronic device may control a fan.

If it is determined in operation 613 that the received signal is not thecharging complete signal, the electronic device may process the receivedsignal in operation 621 according to the various embodiments of thepresent disclosure. For example, the signal may be a signal receivedfrom the external device, and the signal may include at least a part ofinformation related to charging. For example, the signal received by theelectronic device from the external device may be information related toa charging duration. For example, if the external device is changed froma constant-current (CC) duration to a CV duration, the signal mayinclude information related to the generated CV duration. According tothe various embodiments, the electronic device may receive a signaltransmitted from the external device via the coil 230 and/or signalprocessor 240 of the wireless charging circuit 200. For example, uponreceiving the charging complete signal, the electronic device may sensethe reception of the signal related to the charging completion, and maycontrol the TA 270 and/or the converter 260 to end the supply of acharging power source (e.g., full charging processing). For example, ifthe supply of the charging power source ends, the electronic device mayturn off the fan via the air circulation generation member 250. Forexample, if the signal transmitted from the external device is a signalincluding at least a part of information related to the CV duration, theelectronic device may end the supply of charging power source on thebasis of at least the part of the received signal, and may turn off thefan. For example, if the signal transmitted from the external device isnot the charging complete signal or the signal including at least thepart of the information related to the CV duration, the electronicdevice may perform an operation of processing the received signal. Forexample, the operation of receiving the received signal may be anoperation of changing a charging mode on the basis of at least a part ofthe received signal. For example, if the received signal is a signal forrequesting to change from the high-power charging mode to the basiccharging mode, the power source supply device may control the TA 270 andthe converter 260 to supply a charging power source of the basiccharging mode.

The electronic device according to the various embodiments of thepresent disclosure may analyze the charging power source transmittedwirelessly from the coil 230 of the wireless charging circuit 200 to theexternal device. If the wirelessly transmitted charging power source isdecreased on the basis of the analysis result, the electronic device mayend the supply of the charging power source and may turn off the fan.

According to the various embodiments of the present disclosure, if it isdetermined as a full charging state, the electronic device may controlthe TA 270 and/or the converter 260 to end the supply of the chargingpower source. For example, the electronic device may turn the fan offvia the air circulation generation member 250. For example, if theelectronic device performs a full charging control operation, althoughit is described that the electronic device ends the supply of thecharging power source and thereafter turns the fan off, an operation ofturning the fan off may be first performed and thereafter an operationof ending the supply of the charging power source may be performed.

According to various embodiments of the present disclosure, anelectronic device may include: a housing; a wireless charging coildisposed inside the housing; a fan disposed inside the housing and inproximity to the coil; a temperature sensor disposed inside the housingand in proximity to the coil; a wireless charging circuit having thecoil and configured to transmit power wirelessly to an external devicevia the coil; and a control circuit electrically connected to the fan,the temperature sensor, and the wireless charging circuit. The controlcircuit may be configured for receiving a signal from the externaldevice, receiving data related to a temperature of the coil from thetemperature sensor, and controlling the fan at least partially on thebasis of the signal and/or the data.

According to the various embodiments of the present disclosure, thewireless charging circuit may be capable of operating in a first modefor transmitting the power with a first power source or a second modefor transmitting the power with a second power source having higherpower than the first power source. The control circuit may be allowed toselect the first mode or the second mode at least partially on the basisof the signal and/or the data.

According to the various embodiments of the present disclosure, thecontrol circuit may further include a circuit for interfacing with anexternal power source, and may be configured to receive power of adifferent level from the external power source via the circuit forinterfacing on the basis of the first mode or the second mode.

According to the various embodiments of the present disclosure, thecontrol circuit may be configured to turn on or turn off the fan atleast partially on the basis of the signal and/or the data.

According to the various embodiments of the present disclosure, thecontrol circuit may be configured to adjust a rotation speed of the fanat least partially on the basis of the signal and/or the data.

According to the various embodiments of the present disclosure, thecontrol circuit may be configured to receive a signal from the externaldevice via the wireless charging circuit.

According to the various embodiments of the present disclosure, thesignal from the external device may include an indication for requestingfor the control of the fan.

According to the various embodiments of the present disclosure, thesignal from the external device may include an indication regarding alevel of power transmitted wirelessly to the external device via thecoil.

According to the various embodiments of the present disclosure, theelectronic device may constitute a part of furniture, a buildingstructure, a vehicle, and a white appliance.

According to various embodiments of the present disclosure, anelectronic device may include: a housing; a wireless charging coildisposed inside the housing; a fan disposed inside the housing and inproximity to the coil; a temperature sensor disposed inside the housingand in proximity to the coil; and a wireless charging circuit having thecoil and configured to transmit power wirelessly to an external devicevia the coil, and may perform an operation including: receiving a signalfrom the external device; receiving data related to a temperature of thecoil from the temperature sensor; and controlling the fan at leastpartially on the basis of the signal and/or the data.

According to the various embodiments of the present disclosure, thewireless charging circuit may be capable of operating in a first modefor transmitting the power to a first power source or a second mode fortransmitting the power to a second power source having higher power thanthe first power source. The operation of controlling the fan may furtherinclude selecting the first mode or the second mode at least partiallyon the basis of the signal and/or the data.

According to the various embodiments of the present disclosure, theelectronic device may further include a circuit for interfacing with anexternal power source. The operation of controlling the fan may beperformed to receive power of a different level from the external powersource via the circuit for interfacing on the basis of the first mode orthe second mode.

According to the various embodiments of the present disclosure, theoperation of controlling the fan may be performed to turn on or turn offthe fan at least partially on the basis of the signal and/or the data.

According to the various embodiments of the present disclosure, theoperation of controlling the fan may be performed to adjust a rotationspeed of the fan at least partially on the basis of the signal and/orthe data.

According to the various embodiments of the present disclosure, theoperation of controlling the fan further may include receiving a signalfrom the external device via the wireless charging circuit.

According to the various embodiments of the present disclosure, thesignal from the external device may include an indication for requestingfor the control of the fan.

According to the various embodiments of the present disclosure, thesignal from the external device may include an indication regarding alevel of power transmitted wirelessly to the external device via thecoil.

According to the various embodiments of the present disclosure, theelectronic device may constitute a part of furniture, a buildingstructure, a vehicle, and a white appliance.

Various embodiments of the present disclosure may include a chargingcoil disposed inside a housing, a fan disposed in proximity to thecharging coil, a temperature sensor disposed in proximity to thecharging coil, and may include operations of: supplying a power sourceof high power in a high-power charging mode to the charging coil forwirelessly transmitting the supplied charging power source to anexternal device; sensing a heating temperature from the temperaturesensor and if the heating temperature exceeds a threshold, turning thefan on; and if a high-power charging mode stop request signal isreceived from the external device, transitioning to a basic chargingmode and turning the fan off.

The various embodiments of the present disclosure may further include anoperation of performing the basic charging mode upon sensing an approachof the external device, and if the approached external device is ahigh-power charging enabled external device, setting the high-powercharging mode and turning the fan on.

The various embodiments of the present disclosure may further includeoperations of: supplying a power source of basic power in the basiccharging mode to the wireless charging circuit; sensing a heatingtemperature from the temperature sensor and if the heating temperatureexceeds a threshold, turning the fan on; and turning off the fan uponsensing full charging.

According to the various embodiments of the present disclosure, theoperation of turning the fan on may further include operations of:turning the fan on if the heating temperature exceeds an upper thresholdin each of the charging modes; and turning the fan off if the heatingtemperature is lower than a lower threshold while driving the fan.

The various embodiments of the present disclosure may further includeoperations of: sensing a misalignment in each of the charging modes;sensing a heating temperature from the temperature sensor upon sensingthe misalignment; and turning the fan on if the heating temperatureexceeds the upper threshold.

According to the various embodiments of the present disclosure, in theoperation of sensing the misalignment, the misalignment may bedetermined when a corresponding charging power source is supplied withmaximum possible current for at least a specific time in each of thecharging mode.

According to the various embodiments of the present disclosure, in theoperation of determining full charging, it may be determined as the fullcharging when a battery charging complete signal is received from theexternal device.

According to the various embodiments of the present disclosure, in theoperation of determining full charging, it may be determined as the fullcharging when a charging power source transmitted wirelessly to theexternal device is decreased for a specific time.

According to the various embodiments of the present disclosure, thebasic charging mode may be performed if a charging time in thehigh-power charging mode is a time which is set to the basic chargingmode.

According to the various embodiments of the present disclosure, if theheating temperature in the high-power charging mode is higher than ahigh-power charging limit temperature, the basic charging mode may beperformed by stopping the high-power charging mode.

Hereinafter, an internal structure of a wireless charging device (e.g.,the electronic device 201) and a cooling structure thereof according tovarious embodiments of the present disclosure will be described withreference to the accompanying drawings.

FIG. 7 is an exploded perspective view illustrating a structure of awireless charging device according to various embodiments of the presentdisclosure.

Referring to FIG. 7, a wireless charging device 700 according to thevarious embodiments may be a wireless charging device which can beconfigured roughly in a pad shape so that an external device is placedthereon.

The wireless charging device according to the various embodiments mayinclude one or more heat generators 710 and 740 and at least one aircirculation generation member 730, e.g., a fan, for transferringgenerated heat to the outside. The wireless charging device according tothe various embodiments may be a device on which an external device isplaced to charge the external device in a wireless manner through amutual operation with the wireless charging device.

The wireless charging device according to the various embodiments mayinclude the first and second heat generators 710 and 740 and the aircirculation generation member 730 (also referred to as a fan or an aircirculation generation device). According to the various embodiments,the air circulation generation member 730 may be called a cooling devicefor performing a function of decreasing a temperature of the first andsecond heat generators 710 and 740, and may be called a heat emittingdevice or an air circulation device since air including heat is emittedto the outside. The air circulation generation member 730 may bedisposed between the first and second heat generators 710 and 740. Forexample, the air circulation generation member 730 may be disposed in anup-and-down laminated structure with respect to the first and secondheat generators 710 and 740. The laminated structure may include thefirst heat generator 710, the air circulation generation member 730, andthe second heat generator 740 from upward to downward. For anotherexample, the wireless charging device may include a housing, and thehousing may include a first surface and a second surface facing thefirst surface in an opposite direction. For another example, the firstsurface may be an outer surface which is raised by the electronicdevice, and the second surface may be a bottom surface. For anotherexample, in the wireless charging device, the first heat generator 710may be disposed in parallel and in proximity to the first surface of thehousing, the air circulation generation member 730 may be disposed belowthe first heat generator 710, and the second heat generator 740 may bedisposed below the air circulation generation member 730.

According to the various embodiments, the air circulation generationmember 730 may be disposed between the first heat generator 710 and thesecond heat generator 740. The air circulation generation member 730 maycool each of the first heat generator 710 and the second heat generator740, and may play a role of emitting heat generated from each of thefirst heat generator 710 and the second heat generator 740 to outsidethe housing.

According to the various embodiments, the first heat generator 710 maybe a coil (a transmission coil), and the second heat generator 740 maybe a PBA.

According to the various embodiments, the air circulation generationmember 730 may include an air flow fan. According to the variousembodiments, the wireless charging device may include the first heatgenerator 710, the air circulation generation member 730, and the secondheat generator 740.

According to the various embodiments of the present disclosure, thehousing may be a supporter (a supporting construction) whichstructurally supports the air circulation generation member 730 and thesecond heat generator 740, which protects the aforementioned components,and which is formed of an injection material serving for an externaldesign.

According to the various embodiments, the housing may include an upperhousing 702 and a lower housing 704. The upper and lower housings 702and 704 may be coupled in a vertical direction to provide a pad-typeexterior.

According to the various embodiments, the upper housing 702 may have aflat surface in an upper portion thereof so that an electronic devicehaving a reception coil is placed thereon. Further, the upper housing702 may have a rubber pad which may generate frictional force withrespect to the external device placed thereon and which is mounted on agroove of the rubber pad 701. The rubber pad may prevent a movement ofthe electronic device placed thereon due to the frictional force withrespect to the electronic device. The rubber pad 701 may be constructedin a shape similar to that of the first heat generator 710. For example,the rubber pad may be constructed to have a ring shape. According to thevarious embodiments, an outer surface of the rubber pad may be disposedto the upper surface of the housing in an exposed manner, and may bedisposed in parallel.

According to the various embodiments, the first heat generator 710 is afirst heat generator in which heat is generated during the operation,and may be the coil 230 of FIG. 2. According to the various embodiments,the coil may deliver power to the coil of the external device (notshown) by using an electromagnetic induction phenomenon.

According to the various embodiments, a shield member 711 may bedisposed below the first heat generator 710. The shield member 711 mayprotect other electrical elements (e.g., a PBA 740, an air circulationgeneration member 730, or the like) from an electromagnetic fieldgenerated when power is transmitted to a reception coil, and mayincrease efficiency of wireless power transmission.

According to the various embodiments, the housing may include asupporter, e.g., a bracket 720, for supporting the first heat generator710 and the shield member 711, for fixing the air circulation generationmember 730, and for providing a duct structure of the air circulationgeneration member 730. According to the various embodiments, a ductincluded in the bracket 720 may be an inner injection construction forinducing an air flow. For example, the bracket 720 may form at least onehole to a portion of a surface which is in contact with the shieldmember 711 so that the air flow has an effect on the shield member 711and the first heat generator 710 (the heat generator). For example, thehousing forms at least one vent hole 704A to an outer surface of thelower housing 704, and thus may be a passage through which air includinginternal heat of the device exits via the at least one vent hole 704Aand/or a passage through which an external air can enter.

According to the various embodiments, the air circulation generationmember 730 may be placed to generate an air flow between the second heatgenerator 740 (i.e., the heat generator) and the first heat generator710 (i.e., the heat generator). For example, the air circulationgeneration member 730 includes an air flow fan, and whether to drive theair circulation generation member (hereinafter, referred to as a fan)may be determined by a control circuit (not shown). For example, the aircirculation generation member 730 may be placed to face the first heatgenerator 710 in an up-and-down laminated structure, and may be placedto face the second heat generator 740 in the up-and-down laminatedstructure.

According to the various embodiments, the first heat generator 710and/or the shield member 711 may have a (circular shaped or ring shaped)center, and the air circulation generation member 730 may also have arotation center of the fan. For example, the first heat generator 710,the shield member 711, and the air circulation generation member 730 maybe disposed along the same axis. For another example, the aircirculation generation member 730 may be placed to be separated from theshield member 711, and may be placed to be separated from the secondheat generator 740. For example, the air circulation generation member730 may have a gap formed with each of the shield member 711 and thesecond heat generator 740, and the gap may be an air movement passage.Air including heat generated through the gap may be emitted outside thehousing by the use of the air circulation generation member 730.

FIG. 8 is an assembled perspective view illustrating an outer appearanceof a wireless charging device according to various embodiments of thepresent disclosure.

Referring to FIG. 8, a wireless charging device 800 according to thevarious embodiments may form the outer appearance by coupling of anupper housing 820 and a lower housing 804. The outer appearance of thewireless charging device according to the various embodiments is notlimited to a circular shape when viewed from the top. When the outerappearance of the wireless charging device 800 is viewed from the top, alogo or the like may be indicated in a center 810.

According to the various embodiments, the upper housing 802 may furtherhave a rubber pad in a groove 801 formed on an outer surface. The rubberpad may be constructed of a ring shape similar to a coil. The rubber padmay be an indicator for aligning the electronic device to the center byusing color different from color of the upper housing 802.

FIG. 9 is a cross-sectional view briefly illustrating a structure of awireless charging device according to various embodiments of the presentdisclosure.

Referring to FIG. 9, a wireless charging device 900 according to thevarious embodiments may include a PBA 940, and the PBA may include awireless charging circuit. According to the various embodiments, the PBA940 may be placed below a fan 930 facing thereto. According to thevarious embodiments, the fan 930 may be the air circulation generationmember 250 of FIG. 2.

According to the various embodiments, the fan 930 is disposed on the PBA940 to have a specific gap (to be separated) instead of being placed incontact with a board, and may be constructed to emit heat generated inthe PBA 940 to the outside.

According to the various embodiments, a lower housing 904 has a flatsurface so as to be placed on the floor, and may have one or more ventholes 9041 and 9042 through which air enters from the outside andthrough which the air exits to the outside. According to anotherexample, the vent hole 9041 may further have a mesh 9043 for preventingan external foreign material from entering (e.g., mesh processing).According to an embodiment, one or more of vent holes 9041 and 9042 maybe formed to an entrance portion of the housing, and one or more of themmay be formed to an exit portion thereof. For example, air flows throughthe vent hole 9041 located in the entrance portion by the operation ofthe fan 930, and air including generated heat may be emitted through thevent hole 9042 located in the exit portion.

In the wireless charging device according to the various embodiments,one or more temperature sensors 950 and 952 for detecting a heatingtemperature may be disposed, and the temperature sensor may be disposedin proximity to the heat generator. According to the variousembodiments, the one or more temperature sensors 950 and 952 may bemounted on the PBA 940 or in proximity to the coil 910 or at least aportion of the PBA 940 and/or the coil 910. For example, a thermistormay be used as the temperature sensors 950 and 952.

FIG. 10 is a cross-sectional view illustrating a structure of a wirelesscharging device according to various embodiments of the presentdisclosure.

Referring to FIG. 10, a PBA 1040 of a wireless charging device 1000 maybe disposed to a lower portion of a housing, and may be disposed tooverlap with a fan 1030 with a gap. According to the variousembodiments, the PBA 1040 may include a power source supply device and awireless charging circuit. According to the various embodiments, thewireless charging circuit may include at least one of an I/F, a controlcircuit, an I/F control, and a DC-AC inverter. According to the variousembodiments, a TA may supply a power source to the wireless chargingcircuit. According to the various embodiments, the I/F may be aconnection path to be connected with the TA. According to the variousembodiments, the control circuit may control wireless charging.According to the various embodiments, the I/F control may be acommunication I/F for confirming whether a voltage change of the TA issupported. According to the various embodiments, the DC-AC inverter mayswitch a DC power source of the TA to change to AC power.

According to the various embodiments of the present disclosure,referring to Table 2 below, it is shown an example of cooling each of afront surface and rear surface of the wireless charging device by theair circulation generation member. It can be seen that each of the frontsurface and rear surface of a coil (a transmission coil (TX coil)) inthe air circulation generation member is cooled.

TABLE 2 FAN operation X ◯ A front surface of the 40.7° C. 37.3° C. (3.4°C. ↓) Pad A rear surface of the Pad 44.7° C. 40.3° C. (4.4° C. ↓) A padfront surface of the 45.5° C. 38.3° C. (7.2° C. ↓) TX coil A pad rearsurface of the 49.5° C. 44.0° C. TX coil

FIG. 11 is a cross-sectional view of a wireless charging deviceaccording to various embodiments of the present disclosure.

Referring to FIG. 11, a wireless charging device 1100 according to thevarious embodiments of the present disclosure may include a coil 1110,and may include a shield member 1111 and/or heat radiation member 1112below the coil 1110. According to the various embodiments, the shieldmember 1111 may be disposed below the coil 1110. The shield member 1111may protect other electrical elements (e.g., a PBA, a fan, or the like)from an electromagnetic field generated when power is transmitted to anexternal device, and may increase efficiency of wireless powertransmission.

According to the various embodiments, as a heat generator, the coil 1110may deliver generated heat towards a fan 1130 and a bracket 1120 byusing the heat radiation member 1112. The generated heat may be emittedto the outside by the fan 1130. According to the various embodiments,the heat radiation member 1112 may include an aluminum-based, orcopper-based, or silicon-based material having a higher heat transferrate. For example, the heat radiation member 1112 may be disposed alongthe same axis as the coil 1110 and/or the shield member 1111, and may beattached below the shield member 1111. According to another example, alower surface of the heat radiation member 1112 may be disposed to facean upper portion of the fan 1130 with a specific gap, or may be disposedin proximity to the bracket 1120. The heat generated through the heatradiation member 1112 may be emitted to an exit vent hole by theoperation of the fan in the upper portion of the fan 1130.

FIG. 12 is a rear view illustrating an outer appearance of a wirelesscharging device 1200 according to various embodiments of the presentdisclosure.

Referring to FIG. 12, the wireless charging device 1200 according to thevarious embodiments may roughly have a square shape when viewed from thebottom, and a member 1202 formed of a rubber material may be attached toa lower bottom portion. For example, the wireless charging device 1200may include the member 1202 to prevent slipping from a desktop or thelike.

The wireless charging device 1200 according to the various embodimentsmay have one or more vent holes 1241 and 1242 in a lateral surface 1210.

FIG. 13A is one later view illustrating an outer appearance of awireless charging device 1300 according to various embodiments of thepresent disclosure, and FIG. 13B is another later view illustrating anouter appearance of a wireless charging device according to variousembodiments of the present disclosure.

Referring to FIGS. 13A and 13B, the wireless charging device 1300according to the various embodiments may roughly have a square shapewhen viewed from the top, and may have four lateral surfaces 1310. Thewireless charging device 1300 according to the various embodiments mayinclude a flat portion in upper and lower surfaces thereof. An uppersurface 1301 may be a place on which an electronic device for chargingis placed.

According to the various embodiments, at least one entrance vent hole1341 may be provided to one first lateral surface 1310. Each of the ventholes 1341 may be formed with a gap.

According to the various embodiments, a charging connector 1320 capableof supplying a power source may be disposed between the respective ventholes 1341. For another example, at least one exit vent hole 1342 may beprovided to the second lateral surface 1310 facing the first lateralsurface in an opposite direction. Each of the respective vent holes 1342may be disposed with a specific gap.

According to the various embodiments, air which enters through the atleast one entrance vent hole 1341 may be emitted to the at least oneexit vent hole 1341 in the opposite direction. The entrance vent hole1341 may have more mesh-shaped elements.

The wireless charging device according to the various embodiments is notnecessarily limited such that entrance and exit vent holes are formed tolateral surfaces facing each other. For example, the wireless chargingdevice according to the various embodiments may form vent holes in alllateral surfaces.

FIG. 14 is a cross-sectional view illustrating one portion of an innerstructure of a wireless charging device 1400 according to variousembodiments of the present disclosure.

Referring to FIG. 14, the wireless charging device 1400 according to thevarious embodiments may include first and second heat generators 1410and 1440, an air circulation generation member 1430, and a bracket 1420.The air circulation generation member 1430 may be disposed between thefirst and second heat generators 1410 and 1440 in a laminated shape. Forexample, the air circulation generation member 1430 may be disposed inparallel to the first and second heat generators 1410 and 1440 in anup-and-down laminated structure.

According to the various embodiments, as an internal supportingconstruction for supporting the first and second heat generators 1410and 1440 and the air circulation generation member 1430, the bracket1420 may be constructed of an insulation material, a metallic material,or a combination thereof. The bracket 1420 has a relatively lowertemperature than the first and second heat generators 1410 and 1440, andthus may additionally serve for a heat radiation function for deliveringheat generated in the first and second heat generators 1410 and 1440 tothe outside.

FIG. 15 is a cross-sectional view illustrating an air flow using an aircirculation generation member included in a wireless charging deviceaccording to various embodiments of the present disclosure.

Referring to FIG. 15, a wireless charging device 1500 according to thevarious embodiments may have an air circulation generation member 1530disposed between first and second heat generators 1510 and 1540.Further, at least one entrance vent hole 1541 may be formed to one sideof the wireless charging device 1500, and at least one exit vent hole1542 may be formed to the other side facing the one side.

According to the various embodiments, if the air circulation generationmember 1530 operates, air which enters through the entrance vent hole1541 due to a pressure difference may be emitted to the outside throughthe exit vent hole 1542 via the air circulation generation member 1530.The entered air may be emitted to the outside by absorbing heat of thefirst and second heat generators 1510 and 1540 by the air circulationgeneration member 1530.

According to the various embodiments, the air circulation generationmember 1530 may be constructed such that an upper surface thereof has afirst gap with respect to a bracket 1520 and that a lower surfacethereof has a second gap with respect to a PBA. The first and secondgaps may be an air passage. The first and second gaps may be a space inwhich heat generated by the first and second heat generators 1510 and1540 is concentrated. For example, concentrated heat in the first andsecond gaps may move in an arrow direction and then may be emitted bythe air circulation generation member 1530 to the outside.

FIG. 16 is a cross-sectional view briefly illustrating a structure of awireless charging device 1600 according to various embodiments of thepresent disclosure.

Referring to FIG. 16, the wireless charging device 1600 according to thevarious embodiments of the present disclosure may include first andsecond heat generation units 1610 and 1630 and an air circulationgeneration member 1620, and the air circulation generation member 1620may be disposed to one side of the first and second heat generationunits 1610 and 1630. The air circulation generation member 1620 may bedisposed in parallel without being laminated with respect to the firstand second heat generation units 1610 and 1630. For example, thedisposition structure may be a structure in which the air circulationgeneration member 1620, the first heat generator 1610, and the secondheat generator 1630 are disposed in parallel to each other withoutoverlapping with each other. The air circulation generation member 1620may be disposed to one end of the wireless charging device 1600. Thefirst heat generator 1610 may be disposed to one side of the aircirculation generation member 1620. The second heat generator 1630 maybe disposed to one side of the first heat generator 1610. The first heatgenerator 1610 may be disposed on a shield member 1640. Positions atwhich the first and second heat generation units 1610 and 1630 aredisposed may change with each other. The second heat generator may belocated in the position of the first heat generator, and the first heatgenerator may be located in the position of the second heat generator.

According to the various embodiments, the air circulation generationmember 1620 may play a role of cooling each of the first heat generator1610 and the second heat generator 1630, and of emitting heat generatedin each of the first heat generator 1610 and the second heat generator1630 to the outside a housing. A thick arrow indicates an air flow.

FIG. 17 illustrates an example of a state in which a wireless chargingdevice is mounted on furniture according to various embodiments of thepresent disclosure.

Referring to FIG. 17, a wireless charging device 1700 according to thevarious embodiments may be mounted on furniture 1710 in an integral orseparated manner. According to the various embodiments, the furniture1710 may include a desk, a table, a dressing table, a conference table(a side table), or the like.

Further, the wireless charging device according to the variousembodiments may be mounted on a transportation means in an integral orseparated manner. According to the various embodiments, thetransportation means may include a car, a subway, an airplane, a train,a bus, or the like.

Hereinafter, an electronic device according to various embodiments willbe described with reference to the accompanying drawings. In the presentdocument, the term ‘user’ may refer to a person who uses the electronicdevice or a device (e.g., an artificial intelligence (AI) electronicdevice) which uses the electronic device.

FIG. 18 illustrates an electronic device in a network environment 1800according to various embodiments of the present disclosure.

Referring to FIG. 18, an electronic device 1801 includes at least one ofa bus 1810, a processor 1820, a memory 1830, an input/output interface1850, a display 1860, and a communication interface 1870. According tothe present disclosure, at least one of the components of the electronicdevice 1801 may be omitted, or other components may be additionallyincluded in the electronic device 1801.

The bus 1810 is a circuit that interconnects the aforementioned elementsand transmits communication signals (e.g., control messages) between theaforementioned elements.

The processor (ex: control circuit) 1820 may include at least one of acentral processing unit (CPU), an application processor (AP), and acommunication processor (CP). The processor 1820 carries out operationsor data processing related to control and/or communication of at leastone other component of the electronic device 1801.

The memory 1830 stores commands or data (e.g., a reference pattern or areference touch area) associated with one or more other components ofthe electronic device 1801. According to one embodiment, the memory 1830stores software and/or a program 1840. For example, the program 1840includes a kernel 1841, a middleware 1843, an application programminginterface (API) 1845, an application program 1847, or the like, with oneor more of the kernel 1841, the middleware 1843, and the API 1845 beingreferred to as an operating system (OS).

The kernel 1841 controls or manages system resources (e.g., the bus1810, the processor 1820, or the memory 1830) used for performing anoperation or function implemented by the other programs (e.g., themiddleware 1843, the API 1845, or the application program 1847).Furthermore, the kernel 1841 provides an interface through which themiddleware 1843, the API 1845, or the application program 1847 mayaccess the individual elements of the electronic device 1801 to controlor manage the system resources.

The middleware 1843, for example, functions as an intermediary forallowing the API 1845 or the application program 1847 to communicatewith the kernel 1841 to exchange data. In addition, the middleware 1843processes one or more task requests received from the applicationprogram 1847 according to priorities thereof. For example, themiddleware 1843 assigns priorities for using the system resources (e.g.,the bus 1810, the processor 1820, the memory 1830, or the like) of theelectronic device 1801, to at least one application of the applicationprogram 1847. For example, the middleware 1843 performs scheduling orloading balancing on the one or more task requests by processing the oneor more task requests according to the priorities assigned thereto.

The API 1845 is an interface through which the application 1847 controlsfunctions provided from the kernel 1841 or the middleware 1843, and mayinclude, for example, at least one interface or function (e.g.,instruction) for file control, window control, image processing, or textcontrol.

The input/output interface 1850 forwards instructions or data input froma user through an input/output device (e.g., various sensors, such as anacceleration sensor or a gyro sensor, and/or a device such as a keyboardor a touch screen), to the processor 1820, the memory 1830, or thecommunication interface 1870 through the bus 1810. For example, theinput/output interface 1850 provides the processor 1820 with data on auser′ touch entered on a touch screen. Furthermore, the input/outputinterface 1850 outputs instructions or data, received from, for example,the processor 1820, the memory 1830, or the communication interface 1870via the bus 1810, through an output unit (e.g., a speaker or the display1860).

The display 1860 includes, for example, a liquid crystal display (LCD),a light emitting diode (LED) display, an organic LED (OLED) display, amicro electro mechanical system (MEMS) display, an electronic paperdisplay, and the like. The display 1860, for example, displays varioustypes of content (e.g., a text, images, videos, icons, symbols, and thelike) for the user. The display 1860 may include a touch screen andreceive, for example, a touch, a gesture, proximity, a hovering input,and the like, using an electronic pen or the user's body part.

The communication interface 1870, for example, sets communicationbetween the electronic device 1801 and an external device (e.g., a firstexternal electronic device 1802, a second external electronic device1804, or a server 1806). For example, the communication interface 1870connects to a network 1862 through wireless or wired communication tocommunicate with the external device (e.g., the second externalelectronic device 1804 or the server 1806).

The wireless communication may use at least one of, for example, longterm evolution (LTE), LTE-advanced (LTE-A), code division multipleaccess (CDMA), wideband CDMA (WCDMA), universal mobiletelecommunications system (UMTS), wireless broadband (WiBro), and globalsystem for mobile communications (GSM), as a cellular communicationprotocol. In addition, the wireless communication may include, forexample, a short range communication 1864. The short-range communication1864 may include at least one of, for example, Wi-Fi, Bluetooth™ (BT),near field communication (NFC), and a global navigation satellite system(GNSS). For example, the GNSS may include at least one of, for example,a GPS, a global navigation satellite system (GLONASS), a BeiDounavigation satellite system (hereinafter, referred to as “BeiDou”), andEuropean global satellite-based navigation system (Galileo).Hereinafter, in an embodiment of the present disclosure, the “GPS” maybe interchangeably used with the “GNSS”. The wired communication mayinclude, for example, at least one of a universal serial bus (USB), ahigh definition multimedia interface (HDMI), recommended standard 232(RS-232), and a plain old telephone service (POTS). The network 1862 mayinclude at least one of a communication network, such as a computernetwork (e.g., a local area network (LAN) or a wide area network (WAN)),the internet, and a telephone network.

Each of the first external electronic device 1802 and the secondexternal electronic device 1804 may be a device which is the same as ordifferent from the electronic device 1801. According to an embodiment ofthe present disclosure, the server 1806 may include a group of one ormore servers. According to the present disclosure, all or a part ofoperations performed in the electronic device 1801 can be performed inthe other electronic device or multiple electronic devices (e.g., thefirst external electronic device 1802 or the second external electronicdevice 1804 or the server 106).

According to an embodiment of the present disclosure, when theelectronic device 1801 should perform some functions or servicesautomatically or by a request, the electronic device 1801 may make arequest for performing at least some functions related to the functionsor services by another device (e.g., the first external electronicdevice 1802, the second external electronic device 1804, or the server1806) instead of performing the functions or services by itself. Thefirst external electronic device 1802, the second external electronicdevice 1804, or the server 1806 may perform a function requested fromthe electronic device 1801 or an additional function and transfer theperformed result to the electronic device 1801. The electronic device1801 can provide the requested function or service to another electronicdevice by processing the received result as it is or additionally. Tothis end, for example, cloud computing, distributed computing, orclient-server computing technology may be used.

FIG. 19 is a block diagram of an electronic device 1901 according tovarious embodiments of the present disclosure.

Referring to FIG. 19, for example, an electronic device 1901 may includethe whole or part of the electronic device 1801 illustrated in FIG. 18.The electronic device 1901 may include at least one AP 1910, acommunication module 1920, a subscriber identification module (SIM) card1924, a memory 1930, a sensor module 1940, an input device 1950, adisplay 1960, an interface 1970, an audio module 1980, a camera module1991, a power management module 1995, a battery 1996, an indicator 1997,and a motor 1998.

The processor 1910 may control a plurality of hardware or softwarecomponents connected to the processor 1910 by driving an OS or anapplication program and perform processing of various pieces of data andcalculations. The processor 1910 may be implemented by, for example, asystem on chip (SoC). According to an embodiment of the presentdisclosure, the processor 1910 may further include a graphics processingunit (GPU) and/or an image signal processor (ISP). The processor 1910may include at least some (e.g., a cellular module 1921) of the elementsillustrated in FIG. 19. The processor 1910 may load, into a volatilememory, instructions or data received from at least one (e.g., anon-volatile memory) of the other elements and may process the loadedinstructions or data, and may store various data in a non-volatilememory.

The communication module 1920 may have a configuration equal or similarto that of the communication interface 1870 of FIG. 18. Thecommunication module 1920 may include, for example, the cellular module1921, a Wi-Fi module 1923, a BT module 1925, a GNSS module 1927 (e.g., aGPS module, a GLONASS module, a BeiDou module, or a Galileo module), anNFC module 1928, and a radio frequency (RF) module 1929.

The cellular module 1921 may provide a voice call, image call, a textmessage service, or an Internet service through, for example, acommunication network. According to an embodiment of the presentdisclosure, the cellular module 1921 may distinguish between andauthenticate electronic devices 1901 within a communication networkusing a SIM (e.g., the SIM card 1924). According to an embodiment of thepresent disclosure, the cellular module 1921 may perform at least someof the functions that the processor 1910 may provide. According to anembodiment of the present disclosure, the cellular module 1921 mayinclude a CP.

Each of the Wi-Fi module 1923, the BT module 1925, the GNSS module 1927,and the NFC module 1928 may include, for example, a processor forprocessing data transmitted and received through the relevant module.According to various embodiments of the present disclosure, at leastsome (e.g., two or more) of the cellular module 1921, the Wi-Fi module1923, the BT module 1925, the GNSS module 1927, and the NFC module 1928may be included in one integrated chip (IC) or IC package.

The RF module 1929 may transmit/receive, for example, a communicationsignal (e.g., an RF signal). The RF module 1929 may include, forexample, a transceiver, a power amp module (PAM), a frequency filter, alow noise amplifier (LNA), and/or an antenna. According to an embodimentof the present disclosure, at least one of the cellular module 1921, theWi-Fi module 1923, the BT module 1925, the GNSS module 1927, or the NFCmodule 1928 may transmit and receive RF signals through a separate RFmodule(s).

The SIM 1924 may include, for example, a card including a subscriberidentity module and/or an embedded SIM, and may contain uniqueidentification information (e.g., an IC card identifier (ICCID)) orsubscriber information (e.g., an international mobile subscriberidentity (IMSI)).

The memory 1930 (e.g., the memory 1830) may include, for example, aninternal memory 1932 or an external memory 1934. The internal memory1932 may include at least one of, for example, a volatile memory (e.g.,a dynamic random access memory (DRAM), a static RAM (SRAM), asynchronous dynamic RAM (SDRAM), and the like) and a non-volatile memory(e.g., a one time programmable read only memory (OTPROM), a programmableROM (PROM), an erasable and programmable ROM (EPROM), an electricallyerasable and programmable ROM (EEPROM), a flash memory (e.g., a NANDflash memory or a NOR flash memory), a hard drive, or a solid statedrive (SSD).

An external memory 1934 may further include a flash drive, for example,a compact flash (CF), a secure digital (SD), a micro-SD, a mini-SD, anextreme digital (xD), a multi-media card (MMC), a memory stick, and thelike. The external memory 1934 may be functionally and/or physicallyconnected to the electronic device 1901 through various interfaces.

The sensor module 1940 may measure a physical quantity or detect anoperation state of the electronic device 1901, and may convert themeasured or detected information into an electrical signal. The sensormodule 1940 may include, for example, at least one of a gesture sensor1940A, a gyro sensor 1940B, an atmospheric pressure sensor 1940C, amagnetic sensor 1940D, an acceleration sensor 1940E, a grip sensor1940F, a proximity sensor 1940G a color sensor 1940H (e.g., a red,green, blue (RGB) sensor), a biometric sensor 1940I, atemperature/humidity sensor 1940J, a light sensor 1940K, and anultraviolet (UV) sensor 1940M. Additionally or alternatively, the sensormodule 1940 may include, for example, an E-nose sensor, anelectromyography (EMG) sensor, an electroencephalogram (EEG) sensor, anelectrocardiogram (ECG) sensor, an infrared (IR) sensor, an iris sensor,and/or a fingerprint sensor. The sensor module 1940 may further includea control circuit for controlling one or more sensors included therein.In various embodiments of the present disclosure, an electronic device1901 may further include a processor configured to control the sensormodule 1940 as a part of or separately from the processor 1910, and maycontrol the sensor module 1940 while the processor 1910 is in a sleepstate.

The input device 1950 may include, for example, a touch panel 1952, a(digital) pen sensor 1954, a key 1956, or an ultrasonic input device1958. The touch panel 1952 may use at least one of, for example, acapacitive scheme, a resistive scheme, an IR scheme, and an ultrasonicscheme. In addition, the touch panel 1952 may further include a controlcircuit. The touch panel 1952 may further include a tactile layer andprovide a tactile reaction to the user.

The (digital) pen sensor 1954 may include, for example, a recognitionsheet which is a part of the touch panel or is separated from the touchpanel. The key 1956 may include, for example, a physical button, anoptical key, a keypad, and the like. The ultrasonic input device 1958may detect ultrasonic wave generated by an input tool through amicrophone (e.g., a microphone 1988) and identify data corresponding tothe detected ultrasonic waves.

The display 1960 (e.g., the display 1860) may include a panel 1962, ahologram device 1964, or a projector 1966. The panel 1962 may include aconfiguration identical or similar to that of the display 1860illustrated in FIG. 18. The panel 1962 may be implemented to be, forexample, flexible, transparent, or wearable. The panel 1962 and thetouch panel 1952 may be configured by one module. The hologram device1964 may show a three dimensional image in the air by using aninterference of light. The projector 1966 may display an image byprojecting light onto a screen. The screen may be located, for example,inside or outside the electronic device 1901. According to an embodimentof the present disclosure, the display 1960 may further include acontrol circuit for controlling the panel 1962, the hologram device1964, or the projector 1966.

The interface 1970 may include, for example, an HDMI 1972, a USB 1974,an optical interface 1976, or a D-subminiature (D-sub) 1978. Theinterface 1970 may be included in, for example, the communicationinterface 1870 illustrated in FIG. 18. Additionally or alternatively,the interface 1970 may include, for example, a mobile high-definitionlink (MHL) interface, an SD card/MMC interface, or an infrared dataassociation (IrDA) standard interface.

The audio module 1980 may bilaterally convert, for example, a sound andan electrical signal. At least some elements of the audio module 1980may be included in, for example, the input/output interface 1845illustrated in FIG. 18. The audio module 1980 may process soundinformation which is input or output through, for example, a speaker1982, a receiver 1984, earphones 1986, the microphone 1988, and thelike.

The camera module 1991 is a device which may photograph a still imageand a dynamic image. According to an embodiment of the presentdisclosure, the camera module 1991 may include one or more image sensors(e.g., a front sensor or a back sensor), a lens, an ISP or a flash(e.g., an LED or a xenon lamp).

The power management module 1995 may manage, for example, power of theelectronic device 1901. According to an embodiment of the presentdisclosure, the power management module 1995 may include a powermanagement IC (PMIC), a charger IC, or a battery or fuel gauge. The PMICmay use a wired and/or wireless charging method. Examples of thewireless charging method may include, for example, a magnetic resonancemethod, a magnetic induction method, an electromagnetic method, and thelike, and may further include additional circuits (e.g., a coil loop, aresonance circuit, a rectifier, and the like) for wireless charging. Thebattery gauge may measure, for example, a residual quantity of thebattery 1996, and a voltage, a current, or a temperature during thecharging. The battery 1996 may include, for example, a rechargeablebattery or a solar battery.

The indicator 1997 may indicate a particular state (e.g., a bootingstate, a message state, a charging state, and the like) of theelectronic device 1901 or a part (e.g., the processor 1910) of theelectronic device 1901. The motor 1998 may convert an electrical signalinto mechanical vibration, and may generate vibration, a haptic effect,and the like. Although not illustrated, the electronic device 1901 mayinclude a processing unit (e.g., a GPU) for supporting a mobile TV. Theprocessing unit for supporting mobile TV may, for example, process mediadata according to a certain standard, such as digital multimediabroadcasting (DMB), digital video broadcasting (DVB), or mediaFLO™.

Each of the components of the electronic device according to the presentdisclosure may be implemented by one or more components, and the name ofthe corresponding component may vary depending on the type of theelectronic device. The electronic device according to variousembodiments of the present disclosure may include at least one of theaforementioned elements. Some elements may be omitted or otheradditional elements may be further included in the electronic device. Inaddition, some of the hardware components according to variousembodiments may be combined into one entity, which may perform functionsidentical to those of the relevant components before the combination.

FIG. 20 is a block diagram of a program module according to variousembodiments of the present disclosure.

Referring to FIG. 20, according to an embodiment of the presentdisclosure, a program module 2010 (e.g., program 1840 of FIG. 18)includes an OS for controlling resources associated with an electronicapparatus (e.g., electronic device 1801 of FIG. 18) and/or variousapplications (e.g., an application program 1847 of FIG. 18) running onthe operating system. The OS may be, for example, Android, iOS, Windows,Symbian, Tizen®, Bada, and the like.

The program module 2010 may include a kernel 2020, middleware 2030, anAPI 2060, and/or an application 2070. At least a part of the programmodule 2010 can be preloaded on the electronic device 1801 or downloadedfrom the external electronic device (e.g., the electronic devices 1802,1804 or the server 1806).

The kernel 2020 (e.g., the kernel 1841 of FIG. 18) includes, forexample, a system resource manager 2021 or a device driver 2023. Thesystem resource manager 2021 may control, allocate, or collect thesystem resources. According to an embodiment of the present disclosure,the system resource manager 2021 includes a process management unit, amemory management unit, a file system management unit, and the like. Thedevice driver 2023 includes, for example, a display driver, a cameradriver, a BT driver, a shared-memory driver, a USB driver, a keypaddriver, a Wi-Fi driver, an audio driver, an inter-process communication(IPC) driver, and the like.

The middleware 2030 provides, for example, a function commonly used bythe application 2070 or provides various functions to the application2070 through the API 2060, so that the application 2070 can efficientlyuse limited system resources within the electronic device. According toan embodiment of the present disclosure, the middleware 2030 (e.g., themiddleware 1843 in FIG. 18) includes, for example, at least one of aruntime library 2035, an application manager 2041, a window manager2042, a multimedia manager 2043, a resource manager 2044, a powermanager 2045, a database manager 2046, a package manager 2047, aconnection manager 2048, a notification manager 2049, a location manager2050, a graphic manager 2051, and a security manager 2052.

The runtime library 2035 may include, for example, a library module thata compiler uses to add new functions through a programming languagewhile the application 2070 is executed. The run time library 2035 mayperform input/output management, memory management, or a function for anarithmetic function.

The application manager 2041 manages, for example, a life cycle of atleast one applications of the application 2070. The window manager 2042manages graphical user interface (GUI) resources used by a screen. Themultimedia manager 2043 provides formats used for the reproduction ofvarious media files, and performs encoding or decoding of the media fileusing a codec suitable for the corresponding format. The resourcemanager 2044 manages resources, such as a source code, a memory, and astorage space of at least one application of the application 2070.

The power manager 2045 operates together with a basic input/outputsystem (BIOS) to manage a battery or power and may provide powerinformation used for the operation of the electronic device. Thedatabase manager 2046 generates, searches for, or changes a database tobe used by at least one application of the application 2070. The packagemanager 2047 manages the installation or the updating of applicationsdistributed in the form of package file.

The connection manager 2048 manages wireless connection of, for example,Wi-Fi or BT. The notification manager 2049 provides a display ornotification of an event, such as an arrival message, a promise, aproximity notification, and the like, in such a way that does notdisturb a user. The location manager 2050 manages location informationof the electronic device. The graphic manager 2051 manages graphiceffects to be provided to a user and user interfaces related to thegraphic effects. The security manager 2052 provides all securityfunctions used for system security or user authentication. According toan embodiment of the present disclosure, when the electronic device(e.g., the electronic device 1801) has a telephone call function, themiddleware 2030 may further include a telephony manager for managing avoice call function or a video call function of the electronic device.

The middleware 2030 includes a middleware module for forming acombination of various functions of the aforementioned components. Themiddleware 2030 provides modules specialized according to types ofoperating systems in order to provide differentiated functions. Further,the middleware 2030 dynamically removes some of the existing componentsor adds new components.

The API 2060 (e.g., the API 1845 of FIG. 18) is, for example, a set ofAPI programming functions, and a different configuration thereof may beprovided according to an operating system. For example, with respect toeach platform, one API set may be provided in a case of Android or iOS,and two or more API sets may be provided in a case of Tizen.

The application 2070 (e.g., the application program 1847) includes, forexample, one or more applications which can provide functions, such as ahome function 2071, a dialer 2072, a short message service(SMS)/multimedia message service (MIMS) 2073, an instant message (IM)2074, a browser 2075, a camera 2076, an alarm 2077, contacts 2078, avoice dialer 2079, an email 2080, a calendar 2081, a media player 2082,an album 2083, a watch 2084, a healthcare function (e.g., to measurecalories burned during exercise, or blood sugar levels), and anenvironment information (e.g., atmospheric pressure, humidity,temperature information, and the like).

According to an embodiment of the present disclosure, the application2070 includes an application (e.g., an information exchange application)that supports the exchange of information between the electronic device1801 and the external electronic device. The application associated withexchanging information may include, for example, a notification relayapplication for notifying an external electronic device of certaininformation or a device management application for managing an externalelectronic device.

For example, a notification relay application may include a function oftransferring the notification information generated by otherapplications (e.g., an SMS/MMS application, an e-mail application, ahealthcare application, an environmental information application, andthe like) of the electronic device to the external electronic device.Further, the notification relay application may receive notificationinformation from, for example, the external electronic device andprovide the received notification information to the user.

For example, the device management application may manage (e.g.,install, delete, or update) at least one function (e.g., turning on/offthe external electronic device itself (or some elements thereof) oradjusting the brightness (or resolution) of a display) of the externalelectronic device communicating with the electronic device, applicationsoperating in the external electronic device, or services (e.g., atelephone call service or a message service) provided from the externalelectronic device.

According to an embodiment of the present disclosure, the application2070 includes an application (e.g., a health management application)specified according to an attribute (e.g., as an attribute of theelectronic device, the type of electronic device is a mobile medicalequipment) of the external electronic device. According to an embodimentof the present disclosure, the application 2070 includes an applicationreceived from the external electronic device (e.g., a server, anelectronic device, and the like). According to an embodiment of thepresent disclosure, the application 2070 includes a preloadedapplication or a third party application downloaded from the server. Thenames of the elements of the program module 2010, according to theembodiment illustrated in FIG. 20, may vary according to the type ofoperating system.

According to the present disclosure, at least a part of the programmodule 2010 is implemented in software, firmware, hardware, or acombination of two or more thereof. At least a part of the programmodule 2010 is implemented (e.g., executed), for example, by a processoror application program. At least some of the program module 2010includes, for example, a module, program, routine, sets of instructions,or process for performing one or more functions.

According to various embodiments of the present disclosure, a wirelesscharging device may include: a housing of a first surface; a housinghaving a second surface facing the first surface in an oppositedirection; a coil disposed in parallel and in proximity to the firstsurface; a PBA disposed to at least partially overlap with upper andlower portions of the coil and disposed in parallel and in proximity tothe second surface of the housing; and an air circulation generationmember laminated with a specific interval between the coil and the PBAto emit heat generated in each of the coil and the PBA to the outside.

According to the various embodiments of the present disclosure, the coiland the air circulation generation member may be disposed to beseparated with a first gap and in parallel to each other, the PBA andthe air circulation generation member may be disposed to be separated bya second gap and in parallel to each other, and the first and secondgaps may be utilized as an air ventilation passage.

According to the various embodiments of the present disclosure, a shieldmember may be further provided below the coil, and a heat radiationmember may be further provided below the shield member to deliver heatgenerated in the coil to the housing.

According to the various embodiments of the present disclosure, thehousing may have one or more entrance vent holes formed on one side andone or more exit vent holes formed on the other side in an oppositedirection of the one side.

According to the various embodiments of the present disclosure, thehousing may further include a bracket, and the bracket may support thecoil and may play a role of a duct of the air circulation generationmember.

According to the various embodiments of the present disclosure, a heatradiation member may be disposed on the bracket to deliver to thebracket the heat delivered from the coil.

According to the various embodiments of the present disclosure, atemperature sensor may be further provided to any one of the coil andthe PBA.

According to the various embodiments of the present disclosure, the coiland the air circulation generation member may be disposed centrally in alaminated manner.

According to the various embodiments of the present disclosure, ahousing may have a plurality of vent holes disposed generally to a lowerouter surface.

According to the various embodiments of the present disclosure, heatgenerated in wireless charging can be decreased when high-power or quickwireless charging is performed.

Further, according to the various embodiments of the present disclosure,heat generated due to misalignment of a transmitter and a receiver canbe decreased when wireless charging is performed in the transmitter andthe receiver.

The term “module” used in the present document may represent, forexample, a unit including a combination of one or two or more ofhardware, software, or firmware. The “module” may be, for example, usedinterchangeably with the terms “unit”, “logic”, “logical block”,“component”, or “circuit” etc. The “module” may be the minimum unit ofan integrally constructed component or a part thereof. The “module” maybe also the minimum unit performing one or more functions or a partthereof. The “module” may be implemented mechanically or electronically.For example, the “module” may include at least one of an ASIC chip,FPGAs and a programmable-logic device performing some operations knownto the art or to be developed in the future.

At least a part of an apparatus (e.g., modules or functions thereof) ormethod (e.g., operations) according to various embodiments may be, forexample, implemented as instructions stored in a computer-readablestorage medium in a form of a programming module. In case that theinstruction is executed by a processor (e.g., processor 1820), theprocessor may perform functions corresponding to the instructions. Thecomputer-readable storage media may be the memory 1830, for instance.

The computer-readable recording medium may include a hard disk, a floppydisk, and a magnetic medium (e.g., a magnetic tape), an optical medium(e.g., a compact disc-ROM (CD-ROM) and a DVD), a magneto-optical medium(e.g., a floptical disk), and a hardware device (e.g., a ROM, a RAM, aflash memory, etc.). Also, the program instruction may include not onlya mechanical language code such as a code made by a compiler but also ahigh-level language code executable by a computer using an interpreter,etc. The aforementioned hardware device may be constructed to operate asone or more software modules in order to perform operations of variousembodiments, and vice versa.

The module or programming module according to various embodiments mayinclude at least one or more of the aforementioned constituent elements,or omit some of the aforementioned constituent elements, or furtherinclude additional other constituent elements. Operations carried out bythe module, the programming module or the other constituent elementsaccording to various embodiments may be executed in a sequential,parallel, repeated or heuristic method. Also, some operations may beexecuted in different order or may be omitted, or other operations maybe added.

While the present disclosure has been shown and described with referenceto various embodiments thereof, it will be understood by those skilledin the art that various changes in form and details may be made thereinwithout departing from the spirit and scope of the present disclosure asdefined by the appended claims and their equivalents.

What is claimed is:
 1. An electronic device comprising: a housing; awireless charging coil disposed inside the housing; a fan disposedinside the housing and in proximity to the wireless charging coil; atemperature sensor disposed inside the housing and in proximity to thewireless charging coil; a wireless charging circuit having the wirelesscharging coil and configured to transmit power wirelessly to an externaldevice via the wireless charging coil; and a control circuitelectrically connected to the fan, the temperature sensor, and thewireless charging circuit, wherein the control circuit is configured to:receive a signal from the external device, receive data related to atemperature of the wireless charging coil from the temperature sensor,and control the fan at least partially on a basis of at least one of thesignal and the data.
 2. The electronic device of claim 1, wherein thewireless charging circuit is capable of operating in a first mode fortransmitting the power with a first power source or a second mode fortransmitting the power with a second power source having higher powerthan the first power source, and wherein the control circuit isconfigured to select the first mode or the second mode at leastpartially on the basis of at least one of the signal and the data. 3.The electronic device of claim 2, wherein the control circuit furthercomprises a circuit for interfacing with an external power source, andis configured to receive power of a different level from the externalpower source via the circuit for interfacing on the basis of the firstmode or the second mode.
 4. The electronic device of claim 1, whereinthe control circuit is configured to turn on or turn off the fan atleast partially on the basis of at least one of the signal and the data.5. The electronic device of claim 1, wherein the control circuit isconfigured to adjust a rotation speed of the fan at least partially onthe basis of at least one of the signal and the data.
 6. The electronicdevice of claim 1, wherein the control circuit is configured to receivea signal from the external device via the wireless charging circuit. 7.The electronic device of claim 6, wherein the signal from the externaldevice includes an indication for requesting control of the fan.
 8. Theelectronic device of claim 6, wherein the signal from the externaldevice includes an indication regarding a level of power transmittedwirelessly to the external device via the wireless charging coil.
 9. Theelectronic device of claim 1, wherein the electronic device constitutesa part of furniture, a building structure, a vehicle, and a whiteappliance.
 10. A method for performing wireless charging in anelectronic device, the method comprising: receiving a signal from anexternal device; receiving data related to a temperature of a wirelesscharging coil from a temperature sensor, the temperature sensor disposedinside housing of the electronic device and in proximity to the wirelesscharging coil; and controlling a fan, the fan disposed inside thehousing and in proximity to the wireless charging coil, at leastpartially on a basis of at least one of the signal and the data.
 11. Themethod of claim 10, further comprising: operating, using a wirelesscharging circuit having the wireless charging coil and disposed insidethe housing, in a first mode for transmitting the power to a first powersource, or operating, using the wireless charging circuit, in a secondmode for transmitting the power to a second power source having higherpower than the first power source, and wherein the controlling of thefan further comprises selecting the first mode or the second mode atleast partially on the basis of at least one of the signal and the data.12. The method of claim 11, further comprising interfacing, using aninterface circuit, with an external power source, wherein thecontrolling of the fan comprises receiving power of a different levelfrom the external power source via the interface circuit on the basis ofthe first mode or the second mode.
 13. The method of claim 10, whereinthe controlling of the fan comprises turning on or turning off the fanat least partially on the basis of at least one of the signal and thedata.
 14. The method of claim 10, wherein the controlling of the fancomprises adjusting a rotation speed of the fan at least partially onthe basis of at least one of the signal and the data.
 15. The method ofclaim 10, wherein the controlling of the fan further comprises receivinga signal from the external device via a wireless charging circuit havingthe wireless charging coil.
 16. The method of claim 15, wherein thesignal from the external device includes an indication requestingcontrol of the fan.
 17. The method of claim 15, wherein the signal fromthe external device includes an indication regarding a level of powertransmitted wirelessly to the external device via the wireless chargingcoil.
 18. The method of claim 10, wherein the electronic deviceconstitutes at least one of a part of furniture, a building structure, avehicle, and a white appliance.
 19. The method of claim 10, furthercomprising: operating, using a wireless charging circuit having thewireless charging coil and disposed inside the housing, in a first modefor transmitting the power at a first power level, or operating, usingthe wireless charging circuit, in a second mode for transmitting thepower at a second power source having higher power than the first powerlevel, wherein selection of the first power level or the second powerlevel is based at least in part on a time.